Computer wont start after restarting from windows 8.1

earlier to day i updated my windows 8.1 laptop.after it restart the screen say preparing windows for you, but it been like this for 3 hours. i tried turning it off and back on but still wont work. it doesnt show a error message and my brother think its
a troubleshoot

Sometimes the migration takes very long time. It depends on the capability of your computer. Low power means long time.
Regards
Milos

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Can't select boot disk after restart from Windows 7

I installed Windows 7 RC 7100 on the Mini a while ago and it is working now using the Apple drivers and an updated chipset driver from Nvidia... except:
When I restart the machine from OS X and hold the Option key I get the disk selection screen and I can boot into either OS. But, when I restart the machine from Windows 7 and hold the option key I do not get the disk selection screen and the machine boots into OS X. I have also encountered issues with the Bluetooth keyboard not being recognized after restarting from Windows 7, but this does not happen consistently and seems to occur mainly when I hold down the Option key.
Any suggestions for a fix, tweak or workaround? Thanks.

Are you using a wired keyboard?
Are yo saying that when you boot while depressing ALT it just tries to boot to Windows with not options or anything showing on the screen
Try another keyboard

MSI Z87-G45 Gaming- computer wont start after bios update

Hello!
I just updated my bios to 1.6 --> computer wont start now but the fans are spinning, and the power led are black...
I took out the cmos battery for 30 min and shortened the JBAT1..
Can someone help me?

Well, as the G45 does not offer a backup bios your board seems to be bricked. You can try the recovery tips here: https://forum-en.msi.com/index.php?topic=174985.0
If no help rma it.

HELP !! Computer wont start after i change from 133 to 166 on my FSB

Hi...
I have a K7N2G. I changed the my fsb from 133 to 166. Afterward, I have not been able to start or boot my computer (my fans are on, but monitor is not geting any output).
Thank you and greatly appreciated to anyone that can help me.
Yoge

Hahaha yoge i fell yr pain man cos i did the same thing 3 weeks ago!! I just got my computer back from the shop on Tuesday. What happened was i managed to kill some chip on the mother board and the chip had to be replaced.
This is the story:
Amd XP 2400+,
MSI K7n2g-ilsr
400watt coolermaster
USING THE ONBOARD VGA!!!! (im a dumb F**K, i noe this now)
dual channel 2*256mb sticks (transcend & Kingston value)
I had just installed the latest bios so the kinston is
supported.
High performance settings
FSB/DRAM Ratio 1:1
The only values i had for the FSB were 100, 133 & 166Mhz so i put to 166, i pressed F10 to save and then black screen.
The power was on, the monitor was on, but the hard drive shut down shuted down. So i took a look at the back to check the 4 LED's, 1,3,4 were RED and 2 was GREEN which meant the memory module was damaged, or so it said in the manual.
Apparantly ur not supposed to overclock with the onboard VGA and it even says that in the manual (i must have skipped pass that, duh)
So yoge your gonna have to take ur computer back to the shop to get it fixed sorry to say.
I cost me $35 AUD + $55 for service charge but they oly charged me $35 for the sevice fee cos i am a regular customer.
Also when i got back my computer this week, i opened up the case and do u guys know what i found, a GeForce4 440MX graphic card!!! They gave me a free graphic card!! Woohoo
Well now my computer runs fine with no problems yet and my cpu runs at 25 degrees where as before it ran at 51 degrees.

My computer wont start after I updated Itunes

I tried to update ITunes today to the latest version. Everything downloaded and installed fine but when I when I went to re-start my computer, it wouldn't load. I get the Windows XP Screen and it sits there. Nothing happens. I tried to restore my system to last known configurations. That didn't work. Same problem. I powered down and was able to get into safe mode. I tried to restore the system to a ifferent recovery point. That didn't work, same problem. I went into safe mode and tried to uninstall Itunes but it won't let me. It says that the windows installer service cannot be accessed in safe mode. That didn't seem right so I tried to reload the windows installer but I need the windows installer to install the windows installer apparently and I can't access the windows installer in safe mode. I can't get my computer to boot up in regular mode. i need help. If anyone knows how to deal with this your help would be greatly appreciated.
Windows XP Pro

can you launch the PC from a boot disk?
see:
How To Create a Boot Disk for an NTFS or FAT Partition in Windows XP

Computer wont start after downloading OSX yosemite

Please help me, I bought my imac desktop 6 weeks ago and it kept suggesting to download osx yosemite. Well I did evtually and the Mac
only shows a grey screen, cant do anything. Its my first Mac and I am lost.

Reinstalling OS X 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.
Reinstalling OS X Without Erasing the Drive
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 and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility 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 Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Also see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Yosemite- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

Computer wont start after apple logo shows up..

I have a friend who owns a MBP 13 Late 2012, and suddenly he explains computer after he shut it down, the gray screen shows up and apple logo too, but never enter to the OS.
I have had this problem with a 2009 iMac in the past and they told me it was a problem of humidity and or dust, and so they had to change the Motherboard.
Have any one experienced this ?
I even did the PRam reset several times with no luck, actuallu It wanted to start (get into the OS) but MBP kept with little spinning circle.
Any thoughts?

So I received the MBP, and did the Command R to get to recovery mode, and after the World spinning, I got this Message: www.apple.com/support and then -5010F ... (image 1)
Power it off and reboot it with OPTION key, and selected Macintosh, and after that the Apple logo shows up with the little circle spinning infinitely.
What do you think? Doesnt go any further than this: (image 2)

Itunes wont start after updating on Windows

Ive updated to the most recent version of Itunes and now the program will not start. It immediately says Itunes has stopped working without even opening the program. Ive tried every single fix listed by apple on this website. Nothing has worked. I dont plan on buying anymore music through Itunes if apple cant even get the program to run properly

See HT203206: iTunes for Windows Vista, Windows 7, or Windows 8: Fix unexpected quits or launch issues.
For general advice see Troubleshooting issues with iTunes for Windows updates.
The steps in the second box are a guide to removing everything related to iTunes and then rebuilding it which is often a good starting point unless the symptoms indicate a more specific approach. Review the other boxes and the list of support documents further down the page in case one of them applies.
The further information area has direct links to the current and recent builds in case you have problems downloading, need to revert an older version or want to try the iTunes for Windows (64-bit - for older video cards) release as a workaround for performance issues or compatibility with third party software.
Your library should be unaffected by these steps but there is backup and recovery advice elsewhere in the user tip.
tt2

Iphoto wont start after migration from snow leopard to mountain lion

Hello everyone hope you can help me, I've migrate from Snow Leopard to Mountain Lion and my IPhoto (8.1.2) won't start, I cant reinstall from app store because it came with the copy of Snow Leopard already instaled on my Imac...And I cant find the original Disc, so anyone can help ? felling desperate...

You should be able to Software Update and that will bring your iPhoto up to date.
iPhoto was 9.2.3 at 10.6.8, so I don't know why yours was stuck at 8.1.2
However you can stick the #2 10.6 disk into your machine and should be able to run the bundled app installer.
If that doesn't work there is Pacifist from CharlesSoft that you can extract iPhoto and replace your corrupted one, then run Software Update to bring it current.
Once you have replaced iPhoto, rebuild the database
https://support.apple.com/kb/HT2638
If your still having problems, perhaps a user account or drive permissions issue
..Step by Step to fix your Mac

770-G45 wont start after ShutDown

Recently installed MSI 770-G45, problem starts when i regulary shutdown comp. from WinXP or Win7 64-bit.Computer wont start after that, like ther is no power, fans dont spin, no bips, NOTHING. I got to unplug power cord and plugg it again into psu, after that it starts normaly.
Strange thing is that computer starts normally when i manualy shutdown system(holding the power button on the case).There is no exception, starts perfectly evry time after manual shutdown, no need to unplugg powercord.
Rest of my components> Phenom II X2 555BE, Kingston 2GB 1333mhz, Sapphire 5770, HDD WD 250gb,PSU Corsair TX 650w.
Tried to change power cord, tried other PSU, other case (tought its maybe power button but no), changed mobo battery, installed several OS versions (XP, Win7) and still dont have solution.
MS 7599 ver. 2.0
Bios version 10.2
MoBo is new bought it 3 days ago.
PLEASE HELP!!!!!

First: It is important to clear CMOS after a BIOS update. Unplug power cable before the clearing, as there can be no power in the system
Second: Rebuild the system, but outside the case. Use only PSU, motherboard, processor, one stick of memory and graphics card. If it works better then, you may have a short, from a stand-off too many, or poorly isolated wire somewhere.
But I second it sounds like a motherboard problem. You'd better contact the one who sold it to you.
Oh, an oldie thing! You will need to install Windows again, with the new motherboard and all.

E540 After BIOS update the computer wont start

Hi!
After I did an BIOS update from windows the computer wont start. Only the green FN key and the red "i" in the word ThinkPad lights up!
I can't access BIOS.
Tried tho remove the small CMOS battery for an minute

If these long boot symptoms, following the BIOS update occur, multiple customers have reported success in resolving them by disabling Intel AMT and setting the security chip, TPM, as active in the BIOS.
Steps to disable Intel AMT and enable TPM settings as below.
Boot into BIOS
Select Config
Select Intel AMT
Press Enter key on Intel AMT Control and select Disable
Press ESC twice
Select Security
Select Security chip and select Enable
Press F10 and click Yes.

HT1349 i upgraded to yosemite last week, now my computer wont start. it stops at white screen with apple logo. what do i do?

i upgraded to yosemite last week, now my computer wont start. it stops at white screen with apple logo. what do i do?

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.

Safari wont start after i installed avi player any suggestions?

safari wont start after i installed a avi player any suggestions?

You may have installed the "VSearch" trojan. Remove it as follows.
Malware is always changing to get around the defenses against it. These instructions are valid as of now, as far as I know. They won't necessarily be valid in the future. Anyone finding this comment a few days or more after it was posted should look for more recent discussions or start a new one.
Back up all data before proceeding.
Step 1
From the Safari menu bar, select
          Safari ▹ Preferences... ▹ Extensions
Uninstall any extensions you don't know you need, including any that have the word "Spigot," "Trovi," or "Conduit" in the description. If in doubt, uninstall all extensions. Do the equivalent for the Firefox and Chrome browsers, if you use either of those.
Reset the home page and default search engine in all the browsers, if it was changed.
Step 2
Triple-click anywhere in the line below on this page to select it:
/Library/LaunchAgents/com.vsearch.agent.plist
Right-click or control-click the line and select
          Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item named "com.vsearch.agent.plist" selected. Drag the selected item to the Trash. You may be prompted for your administrator login password.
Repeat with each of these lines:
/Library/LaunchDaemons/com.vsearch.daemon.plist
/Library/LaunchDaemons/com.vsearch.helper.plist
Restart the computer and empty the Trash. Then delete the following items in the same way:
/Library/Application Support/VSearch
/System/Library/Frameworks/VSearch.framework
~/Library/Internet Plug-Ins/ConduitNPAPIPlugin.plugin
Some of these items may be absent, in which case you'll get a message that the file can't be found. Skip that item and go on to the next one.
The problem may have started when you downloaded and ran an application called "MPlayerX." That's the name of a legitimate free movie player, but the name is also used fraudulently to distribute VSearch. If there is an item with that name in the Applications folder, delete it, and if you wish, replace it with the genuine article from mplayerx.org.
This trojan is often found on illegal websites that traffic in pirated content such as movies. If you, or anyone else who uses the computer, visit such sites and follow prompts to install software, you can expect more of the same, and worse, to follow.
You may be wondering why you didn't get a warning from Gatekeeper about installing software from an unknown developer, as you should have. The reason is that the Internet criminal behind VSearch has a codesigning certificate issued by Apple, which causes Gatekeeper to give the installer a pass. Apple could revoke the certificate, but as of this writing has not done so, even though it's aware of the problem. This failure of oversight has compromised both Gatekeeper and the Developer ID program. You can't rely on Gatekeeper alone to protect you from harmful software.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
          Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

Unable to install iTunes after converting from Windows Vista to Windows 7. Am told installation was successful, then "iTunes was not installed correctly", followed by "Error 7 (Windows error 193).

Unable to install iTunes after converting from Windows Vista to Windows 7. Am told installation was successful, then "iTunes was not installed correctly", followed by "Error 7 (Windows error 193). I have my iPod plugged into my computer via USB port. What am I doing wrong?

i have the only account on my laptop so have checked and am the account administrator
i run windows 7 home premium
I have the same problem and
have followed the link uninstalling in the correct order,
then restarted as per instructions,
went to Apple to download itunes,
hit download now,
Visit the iTunes download page. Click Download Now to download the iTunes installer. When prompted, click Save (instead of Run).
did not get a save instead of run prompt
Right click on iTunesSetup or iTunes64Setup (the installer you downloaded in step 3).
If you have Windows Vista, Windows 7, and Windows 8: Choose "Run as administrator."
i can only click run as administrator from right clicking the shortcut on my desktop screen
If iTunes fails to install or repair, it might be necessary to remove components left from a previous installation of iTunes and then reinstall.
sick of doing this
at least 7 or 8 times i have re installed itunes to no avail
troubleshooting no better
please help. pulling my hair out at this stage
it was working fine until 2 days ago when i opened itunes it offered to update to 12.1
not working since i clicked yes
also i have gone to restore previous point and ffs there are no restore points before my multiple reinstalls
really dont want to have to restore factory settings

Computer wont start in any mode

my windows xp computer was just working this past week till i restarted it and it said that i needed to download a antivirus and i have one it just wont open up in safe mode or the regular mode so now the computer wont start at all and now i was wondering if i could get a new computer tower and plug in my netgear wireless G router into this new computer tower and have internet and everything

plugging in a new tower should work. its like a whole new computer with the same screen and stuff as before. mine just got a bad virus and it wont start either. might have to do the same thing.

Computer wont start after restarting from windows 8.1

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