The FFFE?????.* files are suspect also. Any file CREATED on or after the date is suspect, to say the least The question marks and the asterisk in the filename are wildcards. The question mark means ANY CHARACTER. The FFFE files are numbered.
The DELETE command in DOS is:
del (filename and extension), and then press enter.
It would be best to first copy the files onto a floppy before you delete, just in case.