ell after much worry, I finally got "most" of my files back. Even though I had done a MS Backup to an external drive, when it came to do the restore I could not find this function. Luckily the One Drive external file system had almost all my files. I am still in the process of rebuilding the file system.

As to removing the old windows installations, if the disk is showing Red in explorer, there is insufficient space to do this function. After I moved some files and did some other cleanup, there was sufficient space to perform the Clean System Files.

Thanks for all the suggestions.

Regards,
wings515