Assuming that your computer is not using any overlay software (and it
shouldn't be), then running 'sys C:' will not affect your data.

--
Noel Paton (MS-MVP 2002-2005, Windows)

Nil Carborundum Illegitemi
http://www.btinternet.com/~winnoel/millsrpch.htm
http://tinyurl.com/6oztj

Please read http://dts-l.org/goodpost.htm on how to post messages to NG's

wrote in message
...
The msg wants me to "replace the disk, and then press any
key". I can put in a boot disk and can see all my files
in c: drive. I put in diagnosic cd from dell and ran
scandisk and it says "the fat media byte is missing".

If I typed in "sys c:", I understand that might correct
boot sector, but I DONT WANT TO LOSE ALL MY DATA!

Appreciate any assurance in this procedure

Mark