Unfortunately, versions other than Windows 98 or ME do not have such a utility, but it is sometimes possible to find some programs that are starting when Windows starts by looking at the startup menu. To do so, left-click Start, then Programs and then the Startup folder. Right clicking on any program in that folder will provide the option of removing the program from the startup folder. It is many time better to leave the startup folder empty when trying to improve computer performance. Second, many times another reasonably cheap way to increase the speed of a computer is to install additional memory.
Memory is quite inexpensive right now and reasonably easy to install.
They usually cause the loss of data and religion all at the same time. When the first random lockup occurs, it is usually a good idea to make a quick note of the date and the last thing that you changed on your computer - hardware or software. Most times, that change will hold the key to the lockup. Also making a note of what programs are running in the taskbar at the time of the lockup is a good idea. Some programs just won't work and play well with others.