text: where did the bytes go in my hard drive? i posted an earlier question regarding a blue screen with error message bad checksum, corrupt file comctl32.dll.  i'm attempting to replace this file in my hard drive.  i'm booting up to drive d with a cd.  drive b says to insert disk, e is invalid.  drive c has only 14 files, 0 directories & 16,211,968 bytes free.  drive a is using 903,831 bytes with 324,608 free & has only 30 files, no directories.  where are all my directories?  i think a is my hard drive because it has the autoexec.bat file but i can't be certain.  i've tried everything suggested in the menus of f12 & f2, including configuring to an earlier good know date, safe mode, etc.  nothing works.  just that darn blue screen.  i have no windows operating disk because i have a dell laptop & it didn't come with one.  is there anything else i can try that i've overlooked?  i ran the scandisk & it says everything is okay.  what is my best bet to get this thing running again?  i really appreciate your help.  