Having a computer with the windows XP service pack 3 operating system environment. The directory of the machine is not empty. While I used to check the disk by the check disk function, it will occur a error message flashes as the XXX in the window screen(sometimes the error message will appear in the number). I also get the same message while I did the same operation from the properties option of the hard disk drive o the machine. In my computer the C: is the main drive and the rest other are the secondary storage memory. I have another eternal drive G:. I searched everywhere for the solution to fix the issue, but got nothing. i did the command line argument solution in the MS DOS environment but during the execution fro the command line it also gives me the same error message. is there any problem in the registry? Is there anyone who will give me any tips about the problem?