Windows / Start-key resize window disabled.

[Papersquid]

When Windows 10 is functioning normally, you can hold the Windows/Start-key down and press the arrow keys to move and resize the active window.

(i.e. Start-key + left moves the window to the left half of your screen;
Start-key + right moves the window to the right half of your screen;
Start-key + up maximizes the window to the full screen;
Start-key + down minimizes the window to the taskbar)

But it's not working! This has happened before and I don't know how to turn the feature back on. Any help?

 

[Trouble]

Hello and welcome to the forum.
Sounds to me like you may have the snap feature disabled.
Check Control Panel -> ease of access -> make the keyboard easier to use
Scroll down and make sure that there is not a check in "Prevent windows from being automatically arranged when moved to the edge of the screen"
Uncheck it if it is checked and click OK