Bedankt Willy2, nope niet geprutst with IE11, I ensure it's regularly patched and that's it. I've also noticed that 99% of folders/files under Content.IE5 coming from PoptrayU and that confirms what you said. In the meantime I looked at a few other cleaning programs and decided against, too risky to scratch even further. I'll just regularly shred these folders via OW Shredder. MVG