At the first glance it looks great - when you try out the "solutions", they do not work and mess up your PC. However, you learn a lot making it work again.
I had a memory problem on a 32 MB laptop. Not one of the three "Bulletproofing Memory" solutions (Chpater 4) which I tried did actually work. One (long-term bullet-proofing to problem #5) messed up my laptop so badly it would not boot any more.
I finally fixed my problem using information out of this book - but I had to create the solution myself.
My first PC has been an Apple II with Visicalc, and I have had and heavily used PCs ever since. I am not a PC professional and not the brightest guy on earth, but I have been able to use PCs and peripherals without outside help for about 19 years. So I do not believe that it is because I am too dump that I could not get the "bulletproofing solutions" to work.
I bought this book during a trip in Australia and I will not carry it back home.