Don't try, try, try... do.
If chkdsk is pending, it should run when you restart. If it does not,
you have a problem. Start with just getting chkdsk to run manually
first. You need to run it from the Recovery Console.
You can boot into Recovery Console if you have RC installed on your
HDD, you have a bootable XP installation CD (not the same as a CD from
the manufacturer.
If you are not sure of your media situation and RC options, there is a
100% sure way to be sure. Make your own.
You can make a bootable Recovery Console CD by downloading an ISO file
and burning it to a CD.
The same XP Recovery Console commands can be run from the bootable
Recovery Console CD.
The bootable ISO image file you need to download is called:
xp_rec_con.iso
Download the ISO file from here:
http://www.mediafire.com/?ueyyzfymmig
Use this free and easy program to create your bootable CD:
http://www.imgburn.com/
It would be a good idea to test your bootable CD on the computer that
is working.
You may need to adjust the computer BIOS settings to use the CD ROM
drive as the first boot device instead of the hard disk. These
adjustments are made before Windows tries to load. If you miss it,
you will have to reboot the system again.
When you boot on the CD, follow the prompts:
Press any key to boot from CD...
The Windows Setup... will proceed.
Press 'R' to enter the Recovery Console.
Select the installation you want to access (usually 1: C:\WINDOWS)
You may be asked to enter the Administrator password (usually empty).
You should be in the C:\WINDOWS folder. This is the same as the C:
\WINDOWS folder you see in explorer.
RC allows basic file commands - copy, rename, replace, delete, cd,
chkdsk, fixboot, fixmbr, etc.
From the command prompt window run the chkdsk command on the drive
where Windows is installed to try to repair any problems on the
afflicted drive. Running chkdsk is fine to run even if it doesn't
find any problems.
Assuming your boot drive is C, run the following command:
chkdsk C: /r
Let chkdsk finish and correct any problems it might find. It may take
a long time to complete or appear to be 'stuck'. Be patient. If the
HDD light is still flashing, it is doing something. Keep an eye on
the percentage amount to be sure it is still making progress. Run it
again if you need to feel sure about it.
Type 'exit' and then remove the CD and restart the computer.
You do not have to adjust the BIOS again to boot on the HDD since the
CD will not be present.