Hello and thanks for your question, my name is ***** ***** i will be assisting you today
Please try to restore your windows 7 computer by following the steps below :
1-Click Start > All Programs > Accessories > System Tools program group.
2-Click on the System Restore program icon.
3-Click Next > on the Restore system files and settings window.
4-Choose the restore point that you want to use. You should use the restore point with a date when you still don't have the problem you are facing now.
Let me know the results
Has everything worked out please?