Does this sound familiar to anyone here? Struggling with this repeated corruption (hack?) for several months while using SandboxIE on 2 different computers: Vista sp2 & Win 7. Browsers FF 6-10, IE 9. Few addons: request pol, noscript, https Everywhere. Sandboxie tight config: only browsers, no access except for saving downloads. Standard user profile, uac maxed non-risky surfing Symptoms: * undeletable files left in sandbox after redir and sdelete used * or if box emptied, somehow these files find way to Recycle bin (using ccleaner possibly) where files are *undeletable and super hidden* (Can only see delete using offline tools). * if these files stay in sandbox or recycle bin (hidden), user profile increasingly corrupts: permissions change (more lax uac), KAV and KIS security software looses some functions but not all, explorer.exe crashes, notepad as admin crashes, cdrom not fully functional, etc. * AV on & offline scans, Gmer, tdsskiller, HitmanPro never find anything Only cure even if files removed is new user profile. It's pita to check offline for these files each time, by then some damage may be done anyway. What is this generally? Any mitigations? Time for VM?