While this old tutorial talks about reinstalling Windows 98, the same situation can occur if you have to reinstall Windows XP or Vista. Windows just doesn’t like to play nice with other operating systems installed onto the same computer.
I Reinstalled Windows and it Wiped Out Linux

Unlike Windows and Mac operating systems, Linux does not have a graphical interface built in. Instead there are a fairly large number of graphical interfaces that have been built to run on Linux and it is your choice as to which one (or more than one) they you have installed.
In this article I describe how [...]

Just about everyone has their computer attached to a network these days. If you don’t have a local network to connect your computer to then you probably still have it connected to the world’s biggest network - the internet.
I don’t claim to be an expert on networking computers together but I have had some experience [...]

Some time ago I downloaded and installed Microsoft Virtual PC. Given that the computer that I have Windows XP running on is the least powerful of the computers that i regularly use and given what a memory hog that XP itself is, I didn’t hold out much hope for being able to install anything worthwhile [...]

Windows is not the most stable of operating systems and there are many different reasons why it can crash on you. In this guest article you will find several suggestions on steps to take to reduce the chance of having the operating system crash.
First Steps To Fixing Computer Crashes

One section of the site that I haven’t been giving as much attention as I perhaps ought to lately is the section covering the various operating systems. I have sections covering a number of popular operating systems. See if the answers to your operating systems are there and if not then please suggest some additional [...]