I am honestly not very happy about my purchase for avast internet security and premium clean up. fair enough it has detected a few things and cleared it out but that is also partially my problem. I just now decided to try Malwarebytes on the side by it and considering avast uses the same features as Malwarebytes, malware bytes was able to find things that avast wasn't. one file was detected in my windows system directory for god sake and yet avast never caught on it? I am shocked by how badly optimised it is and wished I never purchased it. one major part of clean-up is the registry cleaner, after clearing the registry with avast, malware bytes still found plenty on the registry once again, even in the important OS registry entries. I'm really not happy with this. if I'm honest I think avast is honestly a waste of my money and I wont be buying another license again.