download the following file: rc.iso....go here
..then run chkdsk /r
from the rc.iso cd...be sure the bios is set to boot from the cd drive first...
if you don't have a burning program that will burn .ISO files go here
and get burncdcc ..a small FAST no frills iso burning program... NOTE...do not put a blank cd in until burncdcc opens the tray for you
1. Start BurnCDCC
2. Browse to the ISO file you want to burn on cd/dvd ....in this case its memtest86.iso
3. Select the ISO file
4. click on Start
make sure in the bios the cd drive is the first boot device....put the cd in the cd drive..boot your computer....when you get to the screen that gives you the option to install or repair ...select r...then when you get to the prompt...type in chkdsk /r
NOTE THE SINGLE SPACE BEFORE THE /
While chkdsk is running you will see a light blue window with a dark blue band at the top and bottom. or a black dos box depending on on which cd you use... a Chkdsk will display the specific stage it is checking as well as the percentage of completion of the stage....
there are 5 stages...it may appear to hang at a certain % for a hour or more...it even will sometimes go back over a area...this is normal...
WARNING... Microsoft does not recommend interrupting the CHKDSK process
DO NOT SHUT DOWN THE COMPUTER OR YOU CAN HAVE SERIOUS PROBLEMS...it can take a long time depending on how large the drive is...