Question: 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.

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