BSODcorrupt registry?msconfig, changed advanced ticked no.of processor

any solutions that could be fixed by DOS?

I already mentioned the system is NOT bootable, therefore after the OS splash screen, the Blue screen appears, therefore I can not login therefore can not access the Windows Operating System GUI at all.
that means I can't update Direct X.
Therefore I am seeking solutions that can be used before Windows ever gets started up

Ultimately the BSOD prevents me from doing anything with my computer besides looking at my Acer Startup screen, Some black and white screens, System Recovery Menu, the Windows 7 logo and finally the Blue Screen of death Which repeats the previous screens :'(

alright then... thanks. Do you know much about firefox/thunderbird profiles by any chance? I've used Mozbackup to restore and to backup the profiles but since I haven't backed them up recently. Is there a manual way to copy which files are needed, and to then to overwrite the default profile?

what about the firefox one? same one but thunderbird=firefox???

ALSO other users. Please do not think this is the end i'm going to sleep for 8 hours and if you think you know a non-reinstalling windows method POST!
thannk you

Try this before reformatting. Worth a shot, but no gurantees.

Boot to the repair disc or installation DVD, and open a command prompt. Enter the following:

Code:

del C:\Windows\system32\config\sam
del C:\Windows\system32\config\software
del C:\Windows\system32\config\security
del C:\Windows\system32\config\system
del C:\Windows\system32\config\default

Reboot, then run a startup repair.

Startup Repair

how do I do it if i can't change the directory to C:\ by using "cd C:", it jumps back to X:/ instead.