Swipe from the upper-right corner of the screen (or if you're using a mouse, move your pointer to the upper-right hand corner of the screen), and then tap or click Settings.
Tap or click Power, and then tap or click Restart.
To download and run the Windows Update troubleshooter, click the Fix-It button below, or you can open it by following the steps below:
Windows Update Troubleshooter
Note: The Windows Update Troubleshooter may have text that is available in English only. After the Windows Update Troubleshooter is complete your previous Windows Update history may be deleted.
If you don’t have an Internet connection in Windows 8, you can open the Windows Update troubleshooter that's included in Windows 8. However, that troubleshooter does not perform all the troubleshooting steps that the linked troubleshooter above does.
Open the Windows Update troubleshooter by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search).
Type Troubleshooting, tap or click on Settings, and then tap or click Troubleshooting.
Under System and Security, tap or click Fix Problems with Windows Update, and then click Next.
Windows Vista
To start the Windows Update Troubleshooter, click the Fix-it button below:
Windows Update Troubleshooter (English only)
Note The Windows Update Troubleshooter may have text that is available in English only. After the Windows Update Troubleshooter is complete your previous Windows Update history may be deleted.
Note You must be logged on to Windows with an administrator account to complete this method. If this is a computer that is part of a network at work, you should ask the system administrator for help. For information about how to log into Windows as an administrator, click one of the following links, depending on the version of Windows that you're running:
Note If your computer is not configured to start from a CD or from a DVD, or if Windows came preinstalled on your computer without the CDs or DVDs, see the documentation that was included with the computer for instruction about how to continue, or skip to method 2.
When you start your computer by using the Windows installation disc, you can perform system recovery options on startup. To do this, follow these steps:
Windows 8
Insert the Windows 8 installation disc in the drive, and then restart the computer.
When you are prompted to start from the disc, press any key.
Tap or click Repair your computer.
Tap or click Troubleshoot, and then tap or click Advanced options.
Tap or click your version of Windows 8, tap or click System Restore, tap or click the restore point you want, and then tap or click Next.
Follow the onscreen instructions to perform the System Restore, and when prompted, restart your computer.
Windows Vista or Windows 7
Start Windows :
Insert the Windows Vista or Windows 7 installation disc in the drive, and then restart the computer.
When you are prompted to start from the disc, press any key.
When you are prompted, configure the Language to install, Time and currency format, and Keyboard or input method options that you want, and then click Next.
lick Repair your computer.
Select a restore point:
On the System Recovery Options page, click the version of the Windows operating system that you want to repair, and then click Next.
On the System Recovery Options page, click System Restore.
On the System Restore page, click Next.
Select a restore point at which you know that the operating system was working, and then click Next.
The restore point should be a date before the first time that you experienced the error. To select a date, use the Choose a different restore point option, and then click Next.
If you are prompted to specify which disk to restore, select the hard disk, and then click Next.
On the Confirm your restore point page, click Finish.
When the restoration process is complete, click Restart.
Note To prevent this problem in the future, see the steps in the "More Information" section.
Performing an in-place upgrade will restore the current Windows installation to the version of the installation DVD. This also requires the installation of all updates that are not included on the installation DVD. If your computer came with Windows pre-installed, review your computer's documentation for instructions on how to do an in-place upgrade. Otherwise, follow these steps.
Insert the Windows Vista or Windows 7 DVD in the computer's DVD drive.
In the Setup window, click Install Now.
Note If Windows does not automatically detect the DVD, follow these steps:
Click Start, and then type Drive:\setup.exe in the Start Search box. Note The Drive placeholder is the drive letter of the computer's DVD drive, usually D:\.
In the Programs list, click Setup.exe.
In the Setup window, click Install Now.
Click Go online to obtain the latest updates for installation (recommended).
Type the CD key if you are prompted to do this.
Select the operating system in the Install Windows page you want to upgrade.
Click Yes to accept the Microsoft Software License Terms.
On the Which type of installation do you want? screen, click Upgrade.
When the installation is complete, restart your computer.
If these methods did not fix it, you can use the Microsoft Customer Support Services Web site to find other solutions to your problem. Some services that the Microsoft Customer Support Services Web sites provide include the following:
To avoid this problem in Windows Vista, obtain and install update 937287 from the Microsoft Download Center separately from all other updates on the Windows Update site. Install the update that applies to your version of Windows Vista so that you can successfully install future updates.
The following files are available for download from the Microsoft
Download Center:
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