i have windows2000 in my one system, before 2 days windows is corrupt, i tried with chkdsk but its not repaired, i also tried to change winnt\system32\confing folder, windows is start but i can not use programs which are previously installed on my pc, please can you give me some solution to resolve my problem or repair the corrupt file(c:\winnt\system32\config) which i have already as a backup?