To sum up, with your new understanding of how your system works and its potential problems
, you currently have the know-how to fix errors with ErrorNuker as efficiently as a professional (without the expense!). I want to clarify that while antivirus programs clean up viruses quite effectively, they don't actually fix the chaos that many viruses create in the registry files. So that you fully understand, these registry cleaners will not do away with spyware, or the like - for that you'll need another utility that was devised exclusively for that task. Regardless of the fact that computers are now more reliable than in the not too distant past, unfortunately, it's not at all unusual to get unexpected errors. Just one more thing - i'm sure you know people who are struggling with error messages - why not help them out by forwarding this information; i'm sure they will thank you for that.