A lot of computer makers put their own background image on the Windows sign-in screen Some of them are OK, but in many cases I prefer just the regular Microsoft default. Here are the steps to change it back to the default:
Warning: The steps below require editing the Windows registry. If you mess with the wrong things in the registry, you can cause serious problems with your computer.
- Launch the registry editor by clicking Start, typing regedit and pressing ENTER. Click YES if you see a security prompt
- Browse to the following location:
HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Authentication\ LogonUI\ Background
- Double-click on OEMBackground and change value from 1 to a 0
- Restart your computer
As an alternative, you can download this reg file and run it to make the changes automatically. Right-click the link and choose “Save Link As…” to save the file to your computer.