If Lock Screen timeout is not working in Windows 11/10, this post may help. The lock screen timeout feature enhances security and power management by locking your PC once inactive for a set period.
You can change your Windows 10 login screen through your device's Settings app, and make it display any photo you like.
A Slideshow is a series of still pictures displayed on your desktop background or when your computer is inactive. You can easily set a picture folder as your desktop background slideshow, screensaver ...