Mac won't boot at all

My macbook has been working fine for weeks(after my harddrive crashed late january) but today it shut down, and now will not boot at all. It worked 5 minutes earlier and I did nothing different that would have messed it up. When I press the power button the screen flashes but that is all. I tried booting with and without the battery(although it is a brand new battery as of january and I don't think thats the issue). any ideas? or is it toast?

Have you tried resetting the SMC as described in [this Apple kbase article|http://support.apple.com/kb/HT1411]?
If that does not work, I would say that you have a hardware failure. Contact Apple (800-275-2273 in the USA) to set up a repair or carry in to an Apple retail store. Be sure to [make an appointment|http://www.apple.com/retail] first or you may wait a long time to talk to someone.

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HT201177 Only get Apple logo and system busy clock logo at startup. Mac won't boot up

Mac won't boot up. I only get the Apple logo and the "system busy" clock when I turn on my computer. Tried unplugging and restarting but to no avail.

Go to > Mac OS X: Gray screen appears during startup and work thru all the setps in that article.

Mac won't boot after leopard install

hi - installed leopard on my imac but now my mac won't boot:
i have already tried the following:
1) safe mode - but won't boot
2) single user mode - ran fsck - said no issues
3) did target mode with firewire cbale to my macbook and ran disk utility - no repairs needed - and i can see all my files on original computer
4) reinstalled leopard from holding down options key - leopard installed again
but for all of abv - when i reboot i still get white apple logo screen and the spinning wheel...
any other way to get into safe mode - as that is only thing i have not been able to start....
thanks!
susan

tigerswim, welcome to Apple Discussions.
Did you already have Tiger installed or did you have Panther 10.3 installed? Tiger is not a free upgrade; you have to buy it & then update (for free) using the download updates from Apple. Also, you have to use a universal/retail install DVD (or CDs) to install Tiger. You cannot use the install DVD from another model Mac.

HP laptop won't boot at all

My one and half year old Hp 2000 laptop won't boot at all. When I press the power button, it doesn't show any sign of life at all.
I have tried Hard test several times yet it didn't fix it.
Battery charges, power adapter working.
I have also tried to boot using the AC adapter alone yet my precious laptop isn't showing any sign of life.
Please how do I fix this? I need to do my assignment and prepare for my exams, and I can't afford a new laptop. Not when the current laptop is pretty new.
Please help me HP support.
Thank you in advance.

Hi @Chichiiii ,
Thank You for your inquiry.
I understand that when you power on your notebook it is unresponsive. You did state that the AC adapter is working and the battery is charging.
Here is a link to HP Notebook PCs - Computer Does Not Start (Windows 8), which has multiple links to help you determine the issue.
Good Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

Won't boot at all... [will not POST]

Greets. My order from newegg just came in today and i'm quite happy with the "big" things i got-
AMD Athlon 64 3500+ (link)
MSI K8N Neo4-F (link)
Now, I'm not totally oblivious with the whole computer situation, after all, I was brave enough to build this, right? 8) The problem I am having lies in the fact that the computer just won't boot at all. Eventually I turned on that D-Bracket into JDB1. So far it has got Yellow and Red LEDs which stay on. The book tells me that the processor is installed incorrectly. I'm pretty sure it's lying as I have checked it many times (please don't make me take off that heatsink/fan again) and the chip is FIRMLY set in it's place. Alas, the screen stays black (running off of a sapphire card) and nothing happens. I would expect to AT LEAST get a BIOS screen to see where I messed up my SATA configuration (as I'm sure I did...)
But, if anyone has seen a problem like this or knows a solution, please give me a shout. It is very much appreciated
edit: after lurking more (link) I have decided that i'm not at fault, it is, indeed, the graphics card and/or monitor that are not working. I get:
which, according to this post, means that I should be in the clear for BIOS set up. Nothing is displayed on my screen! :( Help!
Thanks.
Sean

Quote from: Supershanks on 12-May-05, 08:28:54
1) Do u have any usb cables from your case front panel or Flash card/drive or usb hubs connected to the mobo if so unplug them.
2) Switch off computer & unplug mains lead the remove a module of memory leaving the remaining 1 in slot1 (nearest CPU)
if 1 doesn't apply or doesn't give any change try 2.
1 does not apply, the only external devices i have attached are a monitor, keyboard, mouse (all os/2, not usb) and of course our friendly D-Bracket.
I have unplugged all IDE devices and SATA devices. All that's in there is the 1 GB of RAM (it's a 1gb stick, not 512mb), graphics card and processor, still no picture :(

Mac won't boot, stuck on grey screen if the external hdd plugged in

as the title.
if i plug my external drive, via usb port, the mac won't boot and stuck at grey screen.
unplugging it, the boot process will continue.
the hdd is a LaCie mobile hdd
any help?

Hello jason(?)
It's a LaCie external mobiel hdd, formatted as exFAT. without adapter. take power directly from usb port.
i tested it on my iMac and it works fine. boot up as normal. the only difference is my iMac is on 10.6.8 and my Air is on 10.7.2
I tested on both USB port on my Air and the problem still persist.
the read/write speed is normal (bought it like a day ago).
another thing is I don't have this problem with my external WD drive.
One thing to notice is that, I accidentally left like for like 2-3 mins and it boots. So why the question now is why it's taking so long to boot? normally it just takes <20 seconds. Seems like it tried to boot from the external hdd, doesn't it?

I've recently update to Yosemite, ever since my Mac won't boot up from the grey screen

ive recently update to Yosemite, ever since my Mac won't boot up from the grey screen, I've checked on the utilities and disk can not be repaired. I'm gutted is it dead?.........how can I solve this......help please
<Re-Titled By Host>

Did you mean Command + Option + R for internet recovery?
The only key commands I know that involve P is a PRAM reset:
https://support.apple.com/kb/PH11243?viewlocale=en_US&locale=en_US
Or maybe I am missing or misunderstanding something?

My mac won't boot up.. I've tried PRAM resets and fsck.

My mac won't boot up anymore. This problem started quite randomly, as I had just used my mac an hour a go. At first, it just wouldn't finish loading up, but now it loads up for a bit, then suddenly shuts down. I've tried resetting my PRAM and using fsck but nothings worked. Any ideas what could be wrong?

Yes I have seen a similar problem quite recently, and ended up having to perform a software reinstallation as not even Disk Warrior could see the Hard Disk.
Before you go to that extreme insert your System Disk 1, reboot holding down the "C" key and go through the first two steps until the "Utilities" menu appears on the top left of your screen.
Select Disk Utility and (assuming your hard disk appears) click on it and select the "First Aid" tab > Repair Disk.

My mac won't boot up, just has a white screen with a blinking ? mark, any suggestions?

my mac won't boot up, just has a white screen with a blinking ? mark, any suggestions?

this usually means the software and hardware can't find each other for whatever reason the following article addresses this issue:
http://support.apple.com/kb/TS1440
can also do apple hardware test, following article on that:
http://support.apple.com/kb/HT1509
if you can't access the apple hardware test in the above article you can also do fsck command to check the hardware as well, following article tells how to do that:
http://support.apple.com/kb/HT1782
hopefully one of these articles helps w/ resolution!!

HT1199 My mac won't boot up it goes to a apple sign then the spin thing then gives me a error msg on a 10.5.8 imac what do I do?

Plz help
My mac won't boot up it goes to a apple sign then the spin thing then gives me a error msg on a 10.5.8 imac what do I do?

Hi LIsa,
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
Or..
Tough without the Install Disk problems, but try fsck...
To use fsck, you must run it from the command line. Unlike using your mouse to open an application to do something, you'll need to type a text command at the prompt (#) to tell fsck what to do. The Terminal application (/Applications/Utilities) and single-user mode are two examples of command-line interfaces in which you can type such commands. To use fsck:
1. Start up your computer in single-user mode to reach the command line. Hold CMD+s keys down at bootup.
Note: If necessary, perform a forced restart as described in the Emergency Troubleshooting Handbook that came with your computer. On desktop computers, you can do this by pressing the reset/interrupt button (if there is one) or holding down the power button for several seconds. On portable computers, simultaneously press the Command-Control-power keys. If your portable computer doesn't restart with this method, you may need to reset the Power Manager.
2. At the command-line prompt, type /sbin/fsck -fy
(SPACE between fsck AND -fy important)
3. Press Return. fsck will go through five "phases" and then return information about your disk's use and fragmentation. Once it finishes, it'll display this message if no issue is found:
The volume (name_of_volume) appears to be OK
If fsck found issues and has altered, repaired, or fixed anything, it will display this message:
***** FILE SYSTEM WAS MODIFIED *****
Important: If this message appears, repeat the fsck command you typed in step 2 until fsck tells you that your volume appears to be OK (first-pass repairs may uncover additional issues, so this is a normal thing to do).
4. When fsck reports that your volume is OK, type reboot at the prompt and then press Return.

My Probook 4310s won't boot at all

Hi there
My probook 4310s energy star suddenly stop working and won't boot at all. Prior to this, the windows freeze couple of times and I had to power off by pressing the power button for few seconds. And this happened few times in a week (not every time I used it)
Now, when I turn it on, the laptop just show the very first splash screen, the one with the logo of 'hp invent', 'intel' and 'press the ESC key for startup Menu'. But pressing any key wont do nothing.
These are what I have tried so far.
- I tried pressing ESC, F11, F12, F10 and all of the F keys but nothing happened
- I even tried to take off the Harddrive and memory card to see if the drive or memory were faulty but it stayed the same.
- with the hd and memory back in, I tried putting in the installation dvd in the hope that the laptop will boot from it, but nothing happened.
- for several times, I let it on overnight and in the morning the screen shows the recovery menu, startup repair, etc. but choosing any option do not do anything and pressing cancel would bring me back to the original faulty state.
- When it show the startup repair menu, I could go to prompt screen and browse the hd content and every files seems to be fine apart from my c drive is now recognized as d drive.
can anyone tell me what is wrong and how to fix it? thank you very much.
It's running on windows 7 home premium 64 bit.

Hello italo_brenner,
In order to get the best and most accurate response for your question, please submit your question onto the HP commercial forums. You have posted on the consumer forum, and you're using a commercial based system. The link below will allow you to submit your question. It is possible that you might have to create another profile.
Commercial Forum
Thanks
Clicking the White Kudos star on the left is a way to say Thanks!
Clicking the 'Accept as Solution' button is a way to let others know which steps helped solve the problem!

Mac won't boot after power chord became unplugged accidently.

Mac won't boot after power chord became unplugged accidently.
I have a Mac Mini running very latest version of OSX. I was making a recording with QuickTime; when I needed to plug in a USB recording device into the back of the Mac Mini, as I pulled the Mac off my shelf to do this, the power cable came out and the Mac lost power.
I plugged it back in and powered up the Mac. I get the grey screen with Apple logo and the spinning grey wheel; then it goes to a blue screen (as usual) and I get the "starting OSX..." progress bar. When the progress bar finishes, I'm left with a blue screen only, no dock, no apple icon at top left, nothing across the top, no nothing.
So far, I've booted from the original disc and repaired the permissions as well as the disc, then re-booted, but same old blue screen.
I have another iMac G5 machine, so is there any way I can at least retrieve the important HD files from the Mac Mini to my G5, before throwing the broken Mac Mini away?
Can anyone advise please?

Hi, Nigel.
Not to differ with my colleagues here, but there's an important question that wasn't asked.
1. You wrote: "So far, I've booted from the original disc and repaired the permissions as well as the disc, then re-booted, but same old blue screen."Did Disk Utility report any errors it could not fix when you ran Repair Disk? I suggest you run the procedure specified in my "Resolving Disk, Permission, and Cache Corruption" FAQ. Perform the steps therein in the order specified.
2. You may also want to run the Apple Hardware Test that came with your Mini to be sure nothing shorted when the power cable was removed from the computer. I've seen it happen, hence I usually recommend removing the power cable at the wall before disconnecting the power cable from the computer. See my "Apple Hardware Test" FAQ.
3. Repair Disk gives your Mini a clean bill of health, the blue screen may be the result of some Startup or Login item that was corrupted due to the sudden power outage. My "Troubleshooting Startup and Login Items" FAQ can help you pin that down if such an item is causing the problem and may help you avoid and Archive and Install.
4. If you elect to go the Archive and Install route, see my "General advice on performing an Archive and Install" FAQ for some important tips on this process.
5. As FYI, this is the kind of problem that makes one glad they've implemented a comprehensive backup and recovery solution. For advice on the backup and recovery solution I employ, see my "Backup and Recovery" FAQ. Computing without a comprehensive backup and recovery solution is like driving without auto insurance.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link.

I had multiple copies of the library and i tried to move 1 to trash and now i have broken icon and my mac won't boot up any more can i fix this from home or do I need to go to the genius bar?

I had multiple copies of the library and i tried to move 1 to trash and now i have broken icon and my mac won't boot up any more can i fix this from home or do I need to go to the genius bar?

Go to the genius bar. You've mucked up your MBP OS and it requires a hands on repair.

Hey, I just installed ML on my OCZ Octane SSD, everything went ok, However, it got stuck while rebooting and now I can only see flashing question mark icon and ML won't boot at all. Only in safe mode...

Hey, I just installed ML on my OCZ Octane SSD, everything went ok, However, it got stuck while rebooting and now I can only see flashing question mark icon and ML won't boot at all. Only in safe mode...

It looks like ocz is aware of the issue and trying to address it via firmware:
http://www.ocztechnologyforum.com/forum/showthread.php?103700-Mountain-Lion-and- OCZ-Octane-Petrol-and-Octane-S2-SSD-s
It's a shame because apple is clearly the party that changed something.

Mac won't boot, starts with white apple screen and spinning wheel. Also has grey loading bar which disappears after loaded then stays at white apple screen.

Mac won't boot, starts with white apple screen and spinning wheel. Also has grey loading bar which disappears after loaded then stays at white apple screen.

Hi cybertoof,
Welcome to Apple Support Communities.
It sounds like you're seeing a startup issue with your Mac, it's booting to a gray screen with an Apple logo. Try the suggestions in the article linked below, they will resolve most issues related to starting up your Mac.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
I hope this helps.
-Jason

Mac won't boot at all

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