Tell us more about when this began and whether you have tried a System Restore to correct it?
Can you start at all in Safe Mode or Last Known Good configuration?
This is a "generic" page of references for the error type:
http://aumha.org/a/stop.php#0x7f
If you can start the system at all, I can run a debugging utility on the dump files if you do this:
1 > create a new folder on the desktop and call it "dumpcheck" or whatever you like
2 > navigate to
c:\windows\minidump and copy the last few minidump files to that folder. *this assumes 'c' is your boot drive, if it is not, subsitute accordingly
3 > close the folder and right click on it and select
Send to Compressed (zipped) Folder.
4 > use the "manage attachments" in the "advanced" reply window to upload that zip file here as an attachment.
This might point us to a non Microsoft driver causing the error, if one exists for it.
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Also if you can access the "repair" mode in Vista you can try a startup repair, system restore, and also run the memory checker >>
http://www.bleepingcomputer.com/tuto...torial148.html