About Blank is a very severe infection which binds itself into many parts of Windows. Most of it's activities have been discovered in hindsight as the infection has morphed into the next phase. The Experts are still working on finding all of its hooks into the system and this makes the infection very difficult to remove. Not understanding what the infection is doing to a PC is the reason that FINDnFIX was pulled, and the same reasons still apply today to any fix you are using. Anyone attempting a fix needs to understand their own limitations with About Blank and know when to hand the thread to an Expert.
The user comes here trusting us to know what we are doing when offering a fix for their PC. Our job is to make that statement true, show them they can trust us by asking for help when we need it, from someone who does know how to fix without causing the user more problems.
Many of our new infections are becoming more and more severe and it is a constant learning process to keep up with the fixes, you can't know everything. One of the most important things to learn here in the classroom is when you are not capable of fixing an infection, and therefore when to ask for help.