Hi,
Just to clarfy, Are you seeing any error messages when you try to copy files from your desktop or Excel files from a folder? Does this problem happen with all types of files or only certain ones, like Excel or large files? And finally, are you trying to copy files to external devices like USB drives, network drives, or both? Understanding these details will help pinpoint whether this is a system permission issue, a device problem, or something else.
Kind regards,