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.
You don’t have to try them all just work your way down the list until you find one that works for you. Here are 9 fixes that have helped many Windows users get their copy-paste working again.
