Windows has a number of recovery features to get up and running quickly after a problem occurs. Some of these recovery features are more advanced than others, to be sure to read the impacts carefully.


    1. Press +R to show the Run box, type RSTRUI and click OK.
    2. Choose a date when the computer was working correctly, and click Next to restore the system files from that date.
    3. Check to see if the problem is fixed. If not, you can go back to step 1 to either undo the restore, or try another date.

    1. Open the PC Settings app, go to Accounts, Other Accounts, and then Add An Account.
    2. When adding the account, choose "Sign in without a Microsoft Account" and create a Local Account.
    3. Login to the new account and see if the issue is fixed. If so, you can open the C:\Users folder and drag your files into the new profile.

    1. Open the PC Settings app, go to Update and Recovery, then choose "Get Started" for the refresh.
      • If you cannot login or use the PC Settings app, you can access these options from Safe Mode instead. On the login screen, click the Power icon, then hold down SHIFT on the keyboard while you click Restart. Keep holding shift until the next screen appears.

    1. Open the PC Settings app, go to Update and Recovery, then choose "Get Started" for the reset.
      • If you cannot login or use the PC Settings app, you can access these options from Safe Mode instead. On the login screen, click the Power icon, then hold down SHIFT on the keyboard while you click Restart. Keep holding shift until the next screen appears.

 

You can learn more about these recovery options here: http://windows.microsoft.com/en-US/windows-8/restore-refresh-reset-pc