Knowing more about what operating system you have would help but I assume you mean chkdsk?
In XP go to Start/Run and type in CMD, then in the ensuing Command Prompt window type chkdsk /r (with the space between the k and /) and click the Enter key.
It will complain that it can't run because the volume is in use, try at next reboot Y/N?
Enter Y and click Enter.
Reboot and let it run. It may take quite a while. Be patient.
If you have several different lettered volumes (partitions or disks) and this is not letter C: then type in chkdsk X: /r (X being the correct drive letter and ensure the spaces exist between k and X and between : and /)
In Vista and Windows 7 go to Start and type cmd in the "Start Search" box.
When cmd or cmd.exe appears in the list above, right-click it and select "Run as Administrator".
Proceed the same way as above from there onwards. OK any UAC prompts you get.
Dear Ex_Brit: I am running XP. I got to the last step but after I did one of the files I got the message that I already had
a file named Run as Administrator. There are 98 total files with cmd in them.
Run as Administrator only applies to Vista or Windows 7.
Go to Start/All Programs/Accessories and look for Command Prompt or go to Start/Run and type in cmd then hit the Enter key, same thing.
Thanks very much, Peter. The 3 culprits showed up in following your directions
and I deleted them.. So for now I think I'm alright.
That's good. Glad to help.