The Complete Guide to Debugging a Stop 0x9F

I’ve written quite a few article about this bugcheck in the past, however, at the time of writing for those articles, some of my knowledge wasn’t as complete as it is now. I was relatively new to debugging and many of the techniques which I use now, weren’t used at that time. As a result I’ve decided to write a complete debugging guide to solving the two most common Stop 0x9F bugchecks experienced by users.

The guide currently spans 10 pages in a Word document, and therefore is too large to upload as a single post, so a direct download link hosted on WordPress will be provided at the end of this post.

I’m hoping to write more comprehensive complete guides in the future; I want to focus on Stop 0x101 again and investigate the internal structure of the NTFS file system, as well as, more security related topics.

As a side note, the cause for the Stop 0x9F 0x4 example was a ZTE NDIS USB driver, and the first debugging example (Stop 0x9F 0x3) was most likely caused indirectly by a AVG driver.

Download Link – The Complete Guide to Debugging a Stop 0x9F


About 0x14c

I'm currently a Software Developer. My primary interests are Graph Theory, Number Theory, Programming Language Theory, Logic and Windows Debugging.
This entry was posted in Debugging, Stop 0x9F, WinDbg, Windows Internals. Bookmark the permalink.

2 Responses to The Complete Guide to Debugging a Stop 0x9F

  1. Makunga says:

    Thank you VERY, VERY much! This is the ultimate guide to 0x9f, ligth years away -and better- than MS has to offer about it. With your help I found a somehow hard to explain BSOD.


    • 0x14c says:

      Your welcome, Microsoft is pretty poor at providing any guidance on debugging BSODs. I’m looking at providing some more detailed guides in the future, and in the process of writing an entire book with some friends which will be free.


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