Follow the steps provided below to resolve the issue:
Method 1: Boot into safe mode and check if the issue persists.
Start your computer in safe mode
Method 2: You may follow the steps below to keep the command prompt
open.
a. Open an elevated Command Prompt window. To open an elevated
Command Prompt, click Start, type cmd, right-click Command Prompt, and
then click Run as administrator.
b. Type the following command and press ENTER: cmd /k netstat
c. Exit the Command Prompt window. Method 3: If the above
method does not resolve the issue, you may follow the below steps.
a. Right click your Start button,
b. Select properties, customize
c. Put a check mark at 'Display Run' Method 4: Try performing
SFC scan on the computer.
How to use the System File Checker tool to troubleshoot missing or
corrupted system files on Windows Vista or on Windows 7
http://support.microsoft.com/kb/929833 Hope this information helps.
From Microsoft