To perform a Windows System Restore to restore your computer to a previous point in time, follow these instructions:
- Windows 10 + Windows 7 + Windows Vista -​
Press the WIN key or click on START | type rstrui | select "rstrui" at the top of the menu -​

- Windows 8.1 + Windows 8 -​
Bring up a Search box(Win + S keys) and type rstrui into it; press ENTER -

This is the next screen that appears - click on Next -

Select a restore point; click on Next -

Verify restore point; click on Finish -

Wait for system restore to complete. (Your system will re-boot).