Here are 8 fixes that have helped many Windows users get their copy-paste working again. 
You don’t have to try them all; just work your way down the list until you find one that works for you.
>Close any video players
>Close any open applications
>Clear your clipboard
>Run System File Checker
>Update your device drivers
>Delete any corrupted zones from your Windows Registry
>Check for viruses and malware
>Undo recent system changes with System Restore