How do I fix copy and paste and copy not working?

How to fix copy and paste not working?

1. Close any video players.
2. Close any open applications.
3. Clear your clipboard.
4. Run System File Checker.
5. Update your device drivers.
6. Delete any corrupt zones from your Windows Registry.
7. Check for viruses and malware.
8. Undo recent system changes with System Restore.