Though you haven't described it perfectly, you may try with restarting the Windows in safe mode. Have you tried it? If you don't know, follow the steps:
Steps for starting Safe Mode from the sign-in screen:
- Restart your computer.
- On the sign-in screen, select 'Power' > 'Restart' while holding down the Shift key.
- Your computer will restart again but this time will load an options screen. Select 'Troubleshoot' > 'Advanced options' > 'Startup Settings' > 'Restart'.
- Your computer will restart for the third time and display another list of options, including the option to start your PC in Safe Mode.
Let me know what happens.