Method 2:
Check if the following services are running. If they are not started try to start them.
Background Intelligent Transfer Service
Cryptographic Service
Windows Update
Windows Installer
a. Click
Start, type "services.msc" (without quotes) and press
Enter.
b.
Double-click the service name in the Services list.
c. On the
Generaltab, next to Startup type, make sure that
Automatic is selected.
d. If the service is not running, under Service status, click
Start, and then click OK.
e. Once the services are started and set as running, try to
install the updates and check.
Method 3: Empty the software distribution folder.
a. Click
Start, click Run, type services.msc, and then click OK.
b. In the Services (Local) pane, right-click
Automatic Updates, and then click Stop.
c. Minimize the Services (local) window.
d. Select all the contents of the
Windows distribution folder, and then delete them.
Note By default, the Windows distribution folder is located in the drive:\Windows\SoftwareDistribution folder. In this location,drive is a placeholder for the drive where Windows is installed.
e. Make sure that the Windows distribution folder is empty, and then maximize the Services (local) window.
f. In the
Services (Local) pane, right-click Automatic Updates, and then click
Start.
g.
Restart the computer, and then run Windows Update again.
For more information you may also refer the following link and check:
Unable to install updates in Windows Vista, Windows 7, Windows Server 2008 and Windows Server 2008 R2
While performing chkdsk on the hard drive if any bad sectors are found on the hard drive when chkdsk tries to repair that sector if any data available on that might be lost.
Registry disclaimer:
This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully.
For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry refer this link: