OPTION 1: Remove White Screen lock screen virus with System Restore
System Restore helps you restore your computer's system files to an earlier point in time. It's a way to undo system changes to your computer without affecting your personal files, such as e?mail, documents, or photos.
Because the White Screen virus will not allow you to start the computer in Windows regular mode, we will need to start System Restore from the Safe Mode with Command Prompt mode.
Restore Windows to a previous state using System Restore
Reboot your computer into Safe Mode with Command Prompt. To do this, turn your computer off and then back on and immediately when you see anything on the screen, start tapping the F8 key on your keyboard.
[Image: F8 key]
If you are using Windows 8, the trick is to hold the Shift button and gently tap the F8 key repeatedly, this will sometimes boot you into the new advanced "recovery mode", where you can choose to see advanced repair options. On the next screen, you will need to click on the Troubleshoot option, then select Advanced Options and select Windows Startup Settings. Click on the Restart button, and you should now be able to see the Advanced Boot Options screen.
Using the arrow keys on your keyboard, select Safe Mode with Command Prompt and press Enter on your keyboard.
[Image: Starting computer in Safe Mode with Command Prompt]
At the command prompt, type rstrui.exe, and then press ENTER.
[Image: Start System Restore to remove lock screen virus]
Alternatively, if you are using Windows Vista, 7 and 8, you can type: C:\windows\system32\rstrui.exe , and press Enter. And if you are a Windows XP user, type C:\windows\system32\restore\rstrui.exe, then press Enter.
System Restore should start, and you will display also a list of restore points. Try using a restore point created just before the date and time the White Screen lock screen virus has infected your computer.
[Image: Restore settings to remove ransomware]
When System Restore has completed its task, start your computer in Windows regular mode, and perform a scan with Malwarebytes Anti-Malware and HitmanPro, as seen in the next step.