The lock screen can be modified by accessing the registry (run "regedit.exe" as Admin) and look for this key:
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization]
You will find two values:
- LockScreenImage=C:\Program Files (x86)\Praim\Agile\Utility\PraimLockScreen.jpg
- NoChangingLockScreen=dword:00000001
There are three alternatives ways to change the lock screen:
- delete the two values → this operation will unlock the Windows configurator, so you will be able to select the lock screen you prefer
- changes the data of the "LockScreenImage" value with the path of the image file you want as lock screen
- let the registry as is, but substitute the file "PraimLockScreen.jpg" in the path contained in the data above, with the file you want as lock screen (it has to be a jpg image with the same name)