
The clipboard in Windows is cleared when you do a operating system restart or logging off from your computer. Instead of taking a restart or logging off, you can actually do the clearing with command prompt.
Open your command prompt and type in below command,
echo off | clip
The executed command will clears the clipboard from your operating system.
You can also do a test here,
- Copy some words from this website and paste it to notepad (you can copy this line)
- Open command prompt and execute echo off | clip command.
- Now open another notepad and paste it. See the different? You cannot paste it anymore because the clipboard was cleared..

