
You can run the command below to clear your clipboard.

If your clipboard is full, you may not be able to copy-paste properly. If it doesn’t, close the next application and test again.

Select each program under Apps, then click the End Task button on the lower right.Right-click on the empty area of your taskbar, and select Task Manager.You can do this easily with Task Manager: To see if this is causing your problem, try closing them one at a time. If you have lots of applications open, or lots of processes running in the background, they may conflict with each other and stop your copy-paste from working. If you’re playing a video, or you have one open in the background, close the video player, and check if the problem is resolved. One thing that often does this is a video player playing an encrypted video. While the Windows clipboard is designed to be unlocked and available to all installed programs, it will occasionally become locked. Undo recent system changes with System Restore.

