Hi R123K,
· Have you made any changes on the computer prior to the issue?
Follow these methods.
**Method 1:**Follow the steps from the article.
How to troubleshoot problems when you install or uninstall programs on a Windows-based computer
http://support.microsoft.com/kb/2438651
Method 2: Perform a Clean Boot to see if there is any software conflict as clean boot helps to eliminate software conflicts.
Note: After performing the troubleshooting steps in clean boot, follow Step 7 from the link to return the computer to Normal startup mode.