There are many things that can corrupt your Windows Registry; anything from deleting certain software to being infected with viruses are common causes. If your Windows registry becomes corrupted, you will get lots of warnings, and your computer will really start to slow down.
However, the worst part of this problem it is really easy to corrupt your Windows registry. You can do it yourself and have no idea that you’ve done it. You should always make a backup of your Windows registry, and the process is pretty easy.