Registry errors

I have Registry Reviver installed and scheduled to run once a week. When ever I boot up the machine it pops up and wants to do a scan. Often I just ignore it but occassionally I will run it. It always comes up with a number of errors amd O was wpmderomg wju.

I am not doing a lot of installing or uninstalling right now so what causes me to get a hundred or more registry errors. I know things go on in the background but that much? Windows is going to take over the world I know it.