Getting Rid of Lock Screen Adverts
Microsoft started putting lock screen adverts on Windows 8.1 PCs a few years ago and carried on doing so with Windows 10.
Occasionally these can be of interest, but most are annoying especially if they replace a wallpaper, you’re fond of. Removing them is easy.
Left click on the Start menu, then select Settings, Personalization, Lock Screen. Look for the Background drop-down menu and select either option that is not Windows Spotlight.

Finally, scroll down and turn off the option that puts ‘fun facts, tips, and more’ on the lock screen. That’ll be the end of the adverts.

Minimizing Multiple Windows by Keyboard Shortcut
When you have a lot of programs open, minimizing them all to get back to the desktop can be quite a chore when you have to click the little ‘line’ icon top-right again, and again.

There is a keyboard shortcut which will minimize all active windows in one fell swoop. Simply hit the Windows Key and D at the same time, and you’ll be back at the desktop in a jiffy.