How to Fix Remote Desktop Not Allowing Copy-Paste.

Enable Clipboard & Drives in RDP Connection Properties

To fix the “Remote Desktop copy-paste not working” issue, you need to enable the Clipboard option in the Remote Desktop Connection properties. Here is how to do that:

1. Open Remote Desktop Connection on your local computer.

2.Go to the Local Resources taband check the Clipboard option.

3. Then, click More… and check the Drivers option.

4. Now connect to the remote computer and check if the “copy-paste not working in RDP” issue has gone.

Credit: https://www.minitool.com/news/remote-desktop-not-allowing-copy-paste.html