I have been using Windows Vista for quite while. This operating system shows how stupid Microsoft engineers really are. Microsoft exists solely because of the monopoly it enjoys, but others are improving and Microsoft is becoming worse and worse every day -- more crap piled up by low IQ people makes each version of Windows worse and worse. Read page 18 of this UN report
One of the fundamental problems of Windows Vista is its instability. It is fatally flawed in its design. Even when the system is still running, the computer become unusable.
For instance, when I right click a file in Explorer, the Explorer will freeze and then the system will prompt you to restart. Many people have the same problem, the suggested solution was to de-associated programs that are causing the freeze. Since you don't know which program is causing the problem, you have to try one by one.... But the problem is why Vista allows such thing to happen in the first place -- an unknown piece of software running in user mode causing the whole system unsable.