Parallels Error

At the bootup screen, my Win XP reads "windows could not start because the following file is missing or corrupt: system32/drivers/ntfs.sys." This started to occur after I installed the Service Pack 2 update.

It also says that I can attempt to repair this file by starting Windows Setup using the original Setup CD, but I'm not sure how I would go about doing this.

Does anyone have a solution to this problem?

Thanks in advance!