Hello and welcome to justanswer, my name is ***** ***** i will be assisting you today,
I'm sorry about the issue, what is the version of your windows operating system (7,8 or windows 10)? what is the model/brand of your computer; it is a laptop or a desktop?
Please boot into safe mode and do a System Restore of your Windows 10 os by following the steps below :
1-Boot to advanced startup options, Click/tap on Troubleshoot. : http://tinyurl.com/qhgz987
2-Click/tap on Advanced options. then Click/tap on System Restore
3-If prompted, click/tap on an administrator account.
4-click/tap on Next : http://tinyurl.com/nt2b8df
5-Choose a different restore point, and click/tap on Next.
6-You should use the restore point with a date when you still don't have this issue
Let me know the results
No you do not need the installation disc, please restart your computer and boot into safe mode then follow the previous steps
Restart your PC. When you get to the sign-in screen, hold the Shift key down while you select Power > Restart.
After your PC restarts to the Choose an option screen, select Troubleshoot > Advanced options > Startup Settings > Restart.
After your PC restarts, you'll see a list of options. Select 4 or F4 to start your PC in Safe Mode.
Please watch one of these tutorial videos :
Ok, I truly apologize that the problem still occurs