On a similar note, has anyone experienced a problem using the registry cleaning portion of Revo Uninstaller? Personally, I have not, but have only used it less than six months.
Yes, I have. Very quickly learned it was because I checked all the items in bold in the registry section.
What is needed when examining the registry part of the cleaner is to expand all the items, right down, and only ticking the bold items in the expanded entry. I had deleted the whole branch. In that case, I only had to reinstall a program to put things right, but without a little care, you could easily prevent the computer from starting.
I would not be surprised to find that is what happened with Fenrir.
Have not had any problems since that learning experience. It works well.