03-14-2014 05:44 AM - edited 03-14-2014 05:46 AM
What is the installed operating system?
Is this something recent that happened after an update or perhaps the addition of new hardware?
Have you considered using Windows system restore and choosing a restore point dated before the issue began?
Doing this will not cause any data loss and is reversible.
2014 Microsoft MVP - Microsoft Windows Expert - Consumer