You can fix Registry Editor, Cannot import reg file, Error accessing the registry by taking full ownership ok the key in Windows 11/10 PC.

However, File Pilot and many other third-party file managers don’t offer this option. To set them as the default file explorer on Windows, you need to manually edit the registry. Even for apps ...

You can copy the contents of a Text file,by right-clicking on the file and selecting Copy To Clipboard. You need to edit the Windows Registry to get this!