extensions and non-functioning class keys
The registry is a very special database within your Windows based computer. When you install or remove programs, or drivers for hardware items, preferences in Windows and other programs, and when you do a variety of other things, this database gets updated. In other words, it's a sort of constantly updated database that keeps a record of exactly what software and hardware is installed on the PC. Normally it works extremely well, but sometimes it can get errors. When it does, you're going to need a special clean up program. How Do Problems Start? When you think about all that this special database is supposed to keep track of, it's no wonder it can wander off track a little from time to time. Consider, each time you load up or uninstall a program, add a password to something, change a password to something, change a feature in Windows or any installed program, add a driver, remove some hardware, even visit a website - entries to the Registry are either added, removed or m...