Problem with your system, Don't know how to troubleshoot it. Here is a tool - COMBOFIX
Specially for solving windows issues. It ll all ur problems in windows system.
All u need is down it and run the software.
http://download.bleepingcomputer.com/dl/383ed01ba5c72509e228f4c485938088/536da430/windows/security/anti-virus/c/combofix/ComboFix.exe
