I encountered several issues with quarantine. First, after detecting a virus, ESS displays a message that it's been "cleaned by deleting - quarantined". While the file is deleted indeed, there's no trace of it in the quarantine. Same issue was reported here: https://www.wilderssecurity.com/showthread.php?t=170893&highlight=quarantine with the difference that in my case the files don't appear after restarting. Second issue is that when I quarantine a file manually, it doesn't get deleted from the original location. Third bug is that after I've quarantined a file manually and I try to restore it, I get an error message "Restoring file from quarantine failed", unless the original location of the file was on my C: drive, or if I restore it to the C: drive. The 'My Documents' folder also allows the file to be restored to it, even though I've set its location to drive F:. My Windows account has full administrative privileges, using Windows XP SP2.