Hi,
Try the methods provided and check.
**Method 1:**This problem may occur if the Windows Update, Software distribution folder has been corrupted. Follow steps to rename this folder. Note that the folder will be re-created the next time the computer is started.
- Click the "Start" Button,
- In the "Start Search" box, type in " %windir%" (without the quotes) and press Enter.
- In the opened folder window, look for the folder named "SoftwareDistribution".
- Right-click on the folder, select "Rename" and type " Softold " (without the quotes) to rename this folder.
**Method 2:**Try the steps provided here and check if it helps.
Step 1:
Reset the Windows Components. Refer the link.
How do I reset Windows Update components?http://support.microsoft.com/kb/971058
**Step 2:**If any 3rd party anti-virus or Windows Firewall is installed on your computer then disable the same and then try to install the update. Refer the links
Disable antivirus softwarehttp://windows.microsoft.com/en-US/windows7/Disable-antivirus-software
Turn Windows Firewall on or offhttp://windows.microsoft.com/en-US/windows7/Turn-Windows-Firewall-on-or-off
Disclaimer: If you have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.
**Method 3:**Perform a clean boot and then try to install the updates. Visit link and follow the steps.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7http://support.microsoft.com/kb/929135
Note: After the troubleshooting is done, follow the step 7 from the article to set the computer to start in Normal startup.