Windows 10: I can't close or minimize a window using the icons in the upper right corner of the window

I can't close or minimize a window using the icons in the upper right corner of the window.
I resize or move any window.
I can't get a right click pop-up to work on the bottom program tray.
I do not get any error code or message. Nothing happens

I CAN close a window via an alt-f4, file>exit or using Task Master.

:)

 

Upper right corner lag.

Fix

The problems can be fixed pretty easily.

For Windows 7 users. (for different OS's usable but these steps refer to Windows 7 OS)

• 
  Go to your Control Panel.
  Go to Hardware and Sound
  Then go to you're Mouse settings. (It's in the blue text under Devices and Printers)
  At the Mouse settings menu you go to the Pointers Tab
  
  
  
  
  On this tab you just have to disable: Enable pointer shadow
  
  Press apply and you're done!
  Worked for me *Smile
  

 

Can't resize window using upper right icon.

Can't resize window In Windows 10 by clicking icon in upper right corner.

 

Upper right corner lag.

And the hotfix too, 10.12a over it as well?
sorry you may did but i no idea, so step by step.

And just make it clear;
your lag is the mouse arow in the corner/
if yes;
do you use samthing on sidebar?
if yes try to switch off and see...
just my one cent