MacBook that won't start up!!!!!! Reformated...Need a Genius. PLEASE HELP!

Okay, so there is this MacBook from ****. Or more like China...either way, disregarding my sarcarism, and my spelling, I originally hooked my MacBook Pro up to my friend's MacBook, launched it in Target Disk Mode, got the files I needed off of the MB, then I used Disk Utility to re-format the MB's hard drive. I then inserted a Mac OS X installer disk that came with a third friends MB. I held down the "C" key and it was able to read the CD and run the installer, HOWEVER-when I got to the part in the installation process where you select the destination volume, the MB's Hard drive (which has been re-formated) has this red stop sign error. The error says that Mac OS X cannot start up from this volume. This error is not a matter of space because Mac OS X requires 15.6 GB on space, but the HD says it has 55.8GB free...I am stumped. Any help you have for me would really be appreciated.

Try simply rebooting from the CD. Failing that, re-run Disk Utility from that installation CD and make sure it's formatted to Mac OS Extended (Journaled).
Matt

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Power Mac G5 won't start up after a security update, please help!!!

Hi all,
My Power Mac G5 version 10.4.11 keeps showing a black video, no beep, no start up chim, this occured after updating a security patch 2008-7 from Apple website, asked to reboot then I encountered this mess.
The powerlight is turn on with solid white color. My display also has its powerlight turn on with solid white. But not nothing happens, except the fan noise becomes gradually louder and louder. I wait for hours ... but ...
My system just won't start up. Although I tried to reset the SMU, reseated RAM...
I tried also to re-install the OS by CD but it's impossible to insert it to the DVD tray.
Any help is greatly appreciated, thank you for your time.
Sgmed.

Hi BDAqua,
After weeks of strugle I can use my MAC as normal, but everytime I shut it down, she cannot wake-up, I had to refer to your hints in order to start it up again. So right now I can use my MAC every day with "SLEEP" mode.
She just cannot RE-START or wake up after a SHUTDOWN.
Any suggestion is greatly appreciated, here under I pasted the log file retrieved from Disk Utilities.
(I tried also to reset PMU, SMU and PRAM but nothing helped. Perhaps she is in need of a brand new PRAM battery???
Oct 26 23:54:04: Disk Utility started.
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Preparing to secure free space : “Untitled”
Creating Temporary File
Securely erasing file
Creating Temporary File
Securely erasing file
Secure Erase Free Space stopped after 14 hours.
89.0% complete.
Erase complete.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities, should be -rw-rw-r-- , they are -rwxrwxr-x
Permissions differ on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences, should be -rwxrwxr-x , they are -rw-rw-r--
User differs on ./Users/Shared/SC Info, should be 0, owner is 501
Group differs on ./private/etc/authorization, should be 80, group is 0
The privileges have been verified or repaired on the selected volume
Permissions verification complete
Repairing permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities, should be -rw-rw-r-- , they are -rwxrwxr-x
Owner and group corrected on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities
Permissions corrected on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities
Permissions differ on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences, should be -rwxrwxr-x , they are -rw-rw-r--
Owner and group corrected on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences
Permissions corrected on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences
User differs on ./Users/Shared/SC Info, should be 0, owner is 501
Owner and group corrected on ./Users/Shared/SC Info
Permissions corrected on ./Users/Shared/SC Info
Group differs on ./private/etc/authorization, should be 80, group is 0
Owner and group corrected on ./private/etc/authorization
Permissions corrected on ./private/etc/authorization
Permissions repair complete
The privileges have been verified or repaired on the selected volume
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.5 GB (237,882,122,240 Bytes)
Used : 11.2 GB (12,042,969,088 Bytes)
Number of Files : 298,349
Number of Folders : 76,969
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
70 %)
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Oct 27 20:59:00: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.6 GB (237,949,358,080 Bytes)
Used : 11.2 GB (11,975,733,248 Bytes)
Number of Files : 298,359
Number of Folders : 76,970
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Oct 28 00:31:37: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Oct 28 18:50:53: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 28 21:00:10: Disk Utility started.
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Repairing permissions for “Macintosh HD”
Determining correct file permissions.
Permissions repair complete
The privileges have been verified or repaired on the selected volume
Oct 29 19:55:10: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist, should be -rw-rw-r-- , they are -rw-r--r--
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player, should be -rwxrwxr-x , they are -rwxr-xr-x
Permissions differ on ./Library/Internet Plug-Ins/flashplayer.xpt, should be -rw-rw-r-- , they are -rw-r--r--
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Repairing permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist, should be -rw-rw-r-- , they are -rw-r--r--
Owner and group corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist
Permissions corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player, should be -rwxrwxr-x , they are -rwxr-xr-x
Owner and group corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player
Permissions corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player
Permissions differ on ./Library/Internet Plug-Ins/flashplayer.xpt, should be -rw-rw-r-- , they are -rw-r--r--
Owner and group corrected on ./Library/Internet Plug-Ins/flashplayer.xpt
Permissions corrected on ./Library/Internet Plug-Ins/flashplayer.xpt
Permissions repair complete
The privileges have been verified or repaired on the selected volume
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.6 GB (237,921,976,320 Bytes)
Used : 11.2 GB (12,003,115,008 Bytes)
Number of Files : 299,521
Number of Folders : 77,045
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Oct 29 20:22:20: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 30 17:14:49: Disk Utility started.
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.1 GB (237,409,587,200 Bytes)
Used : 11.7 GB (12,515,504,128 Bytes)
Number of Files : 299,790
Number of Folders : 77,188
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 30 19:41:53: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 31 20:48:58: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.1 GB (237,362,040,832 Bytes)
Used : 11.7 GB (12,563,050,496 Bytes)
Number of Files : 300,773
Number of Folders : 77,858
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Nov 3 15:48:08: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.1 GB (237,411,020,800 Bytes)
Used : 11.7 GB (12,514,070,528 Bytes)
Number of Files : 300,976
Number of Folders : 77,880
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Nov 3 16:12:13: Disk Utility started.

Apple TV won't start after 5.3 update. Please help!

I got notified this morning that there was a software update for my Apple TV. I left it to update. I came back and now it won't start when I press the menu button on the remote. I didn't want to unplug the power cable, but my tv is not getting a signal from the ATV, so would it be ok?
Thanks!

Mine has done that as well but it wants you to connect a cord to the iTunes icon which doesn't make sense to me.

Another MacBook that won't start up

My white MacBook (early 2007) has just lost the ability to start up, at least intermittently. Doesn't get past the initial grey screen with the initial spinning indicator. In Single User mode, never gets through the messages; it freezes and I can't get to a command line. In Firewire Target mode, my other computer can see that the MacBook is there but can't mount its drive.
It has been acting strange for a while, but this is the worst it's ever been. It has now twice, when I did get it to start up and was using it, just frozen - no kernel panic screen, but a spinning cursor and no ability to get control of the machine.
It's clearly a hardware issue at some deep level, but that's all I know. Might be the hard drive, might be USB which has been acting funny for some time and did give some weird messages during one Single-User Mode startup I tried.

Took it in for repair. Turned out to be the hard drive (as I rather suspected). Hard drive replaced for free under AppleCare.

My Applications Won't Start Up, They Just Crash! PLEASE HELP

Pretty much self-explanatory. I can download apps just fine, but when I open them, the screen turns white, then goes back to my home background thing.
Any ideas?

Here's one of numerous issues that may affect your iPod:
If you have a case for the Touch that uses a magnetic flap over the face, try removing the case and restore completely and try again. There have been many users of such cases reporting problems.
For the OP, if you search around the site, you'll find countless posts describing iPods whose apps crash the device. From those posts that eventually report a resolution to the problem, it seems there are many things that cause the problem and for each, a unique solution.
For Burkester, " There is a problem with the software" - what software? An app? Yes, there have been some apps that cause instability - as reported in some threads. However, considering the countless users who have absolutely no problems with their iPod Touches (myself included), I can only conclude that the problems are either bad apps (not the OS), a faulty installation of OS or apps, or a hardware problem with the iPod itself (requiring an exchange from Apple).
Good luck with your issues!

`my macBook Pro won't start up. Just get that gray blueshy kind of screen and don't go nowhere.

My MacBook Pro won't start up. Just get that gray, blueishy screen and don't go on.

Try a safe boot.
http://support.apple.com/kb/TS2570
This boot takes longer than a normal boot, be patient. If it boots login, and see if it seems normal. If so, logout and reboot normal.

My 2009 2.26Ghz MacBook Pro won't start up

My 2009 2.26Ghz MacBook Pro won't start up. I know it's not the HDD because I replaced it with the old one I had in it and it did the same thing. I also know it isn't the HDD because I can boot of of it when I attatch it via an external HDD enclosure. It sometimes turns on if I let it sit for 30 minutes and if it does turn on it works perfectly and has no symptoms until I close it then it freezes up when I wake it up and I have to hard restart it but it doesn't restart then. It seems to do this more so if I close it then move it (put it in my bag and go to school). It's getting me really upset cause if it's my motherboard it's $600 to replace (almost not worth replacing except I don't have $1400 for a new MBP) please give any advice. I thought about buying the data doubler by OWC but that would be a last resort. I upgraded the ram to 8gb, 1333mhz (I know it uses 1066Mhz but I couldn't find any where I live so I put in 1333mhz ram expecting it to underclock to 1066 which it seems to have done that with no issue to my knowledge just thought I'd add that in case though.

Sluggish could be due to not enough ram for what you want to do.
Keep working with it, you may need to put more ram in, but go for the stuff that meets the specs.
A much liked source on here is OWC, http:www.macsales.com you only have to look up your machine to get exactly the right stuff.
Get back with how it is working, would like to hear more.

Attn: macbook pro won't start up past grey screen NO MATTER WHAT

my macbook pro won't start up past the grey screen, NO MATTER WHAT I DO. i've searched all the discussions on this, and NOTHING WORKS. nothing caused this either - i was just browing the internet and using ichat, and my computer shut down, and that is when this started.
I am EXTREMELY disappointed with this bullstein. My computer works great, etc., and I support mac and apple to the nth degree, but then some stupid crap like this happens and I can't use my computer at all. I have to use my sister's **** ibook g3 to even do this.
PLEASE HELP. do NOT post what you have already posted in the other discussions, and i've already been welcomed to the boards. I can't go to an apple store because i'm on vacation in new mexico for the summer, and there no stores anywhere near here. is there any real advice around here? I need to use my computer. That is why I spent close to $4,000 for it with upgrades and software.

where can i get an install disc for the macbook pro?
You really need to use the one that came with your MBP. If you don't have it, a retail Tiger OS X disc should work.
also, could an archive/install potentially free up some harddrive space on my computer?
No, it will actually use more space, so you will need at least 6G of free space. To clean your hard drive, use WhatSize.
WhatSize >>
-Bmer
Mac Owners Support Group
Join Us @ MacOSG.com
iTunes: MacOSG Podcast
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Macbook Pro won't start at all, no chime, no gray screen, nothing

My 2+ year old MacBook Pro won't start. Nothing happens when the start button is pushed, no chime, nothing. I've tried Control-Command-Start; nothing. I've tried with and without power connected; nothing. I've unplugged the power adapter from the wall, still nothing. Any ideas?

You can try a SMC reset, but it that doesn't power something it needs repair or replacement.
https://support.apple.com/kb/HT3964
Sometimes if the battery was really drained or old, it takes a long time to get it started charging again, like a couple of weeks.
https://support.apple.com/kb/TS1713
https://discussions.apple.com/message/16276201#16276201

My macbook 2007 won't start up past the logo screen.

My macbook 2007 won't start up past the logo screen. I've tried to boot the computer off the install dvd that came with it but it comes up with a box saying that Mac OS X can't be installed on this computer. It has a yellow triangle over a hard drive in the box. What do I do?

You need to start the MacBook with the original DVD that shipped with the MacBook. then run disk utility on your hard drive to repair it, also repair your permissions.

My MacBook pro won't start. It is frozen on the gray screen with the apple. Please help?

My MacBook pro won't start. It's stuck on the gray screen with the apple logo.

Reinstall OS X:
Reinstall Snow Leopard without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.
Reinstalling Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

HT3964 MacBook 2007 won't start up all of the way it gets the loading circle thing then it just keeps going and a bar thing pops up to load but doesn't and about a few minutes and it shut off. I don't have a disk for the computer or another Mac so what do

need help MacBook 2007 won't start up all of the way it gets the loading circle thing then it just keeps going and a bar thing pops up to load but doesn't and about a few minutes and it shut off. I don't have a disk for the computer or another Mac so what do I do?

I don't have the disk and i tried the shift key and it didn't do anything, i have tried like everything but it won't work and i was givin this computer with a charger and that is all nothing came with it and i don't think that it had the lion thing on it either i never got to that it just won't turn on and i have another mac that was a family members but it won't turn on either at all it won't load anything the screen stays black. so i don't really know at all what to do is there anything else? i don't want to take it anywhere because i have no money for that, and i need this computer for school. Any sugestions?

My macbook pro won't start up. I get the white screen and the grey apple icon   the spinning wheel......and it doesn't change !

My macbook pro won't start up. I get the white screen and the grey apple icon   the spinning wheel......and it doesn't change !

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

MacBook that won't start up!!!!!! Reformated...Need a Genius. PLEASE HELP!

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