After using the manufacturers drive test, this will get rid of any
hidden partitions.
WIPE OUT
http://www.lurkhere.com/~nicefiles/index.html
http://www.lurkhere.com/~nicefiles/wipeout.zip
Freeware.
WIPE OUT: as the name implies, this utility will absolutely WIPE your
hard drive. For those times when an industrial strength cleaner is
needed to remove any pesky files Fdisk may have left behind. A readme
file is included in the zip file. WARNING...WIPE OUT will remove ALL
data from the Hard Drive.
DIRECTIONS
1- Unzip file
2- Copy WIPEOUT to a Win9x boot disk
3- Boot with Win9x disk, make sure the bios is set to boot from floppy
1st.
4- At the A:\> type "wipeout c: /nq /np" (no quotes)
/nq = no queries - you will not be asked if you are sure.
/np = no partitions - this will overwrite the MBR
Press Enter.
Now run fdisk to set up partitions.
http://fdisk.radified.com/
When done, reboot & format.