i'm having this problem for quite some time. my problem is, my computer whether i delete, save, install or uninstall a file, it is reverted back to a state when i haven't done anything to it after i reboot the pc.. i used chkdsk without the /f parameter.. it said windows found a problem with file system or something like that. so i used chkdsk /f to check if there's any problem. and obviously it is scheduled the next time i restart the system. but when i restart it. Again, it is back to a state when i haven't done anything to it.. also used chkdsk /r but nothing to no avail. i used chkdsk again and here's what it said.. C:\Documents and Settings\pc>chkdsk c: The type of the file system is NTFS. WARNING! F parameter not specified. Running CHKDSK in read-only mode. CHKDSK is verifying files (stage 1 of 3)... File verification completed. CHKDSK is verifying indexes (stage 2 of 3)... Deleting index entry D296ED75d01 in index $I30 of file 42310. Deleting index entry D296ED~1 in index $I30 of file 42310. Deleting index entry D2E6ED75d01 in index $I30 of file 42310. Deleting index entry D2E6ED~1 in index $I30 of file 42310. Deleting index entry sessionstore.js in index $I30 of file 42703. Deleting index entry SESSIO~1.JS in index $I30 of file 42703. Index verification completed. Errors found. CHKDSK cannot continue in read-only mode. i used xp cd and boot from it.. run chkdsk there and it seemed to correct the errors but when i looged in normally, the problem stays the same.. any ideas? any help is much appreciated.. p.s.: if i save a file or install a program today, the next time i reboot this pc, i'd lose that saved file or lose the installed program as if i never saved or install it..