Bug with Quarantine. I think there is a bug in NOD32 Version.3.0.650.0. I found that NOD32 did not quarantine “All” the infected files when the Cleaning is set to Standard Cleaning in “advanced setup tree > Real time file system protection > Setup > Cleaning” Some of the copies were deleted without quarantining. I did a test with Eicar as follows: Created 15 copies of the eicar test file as “eicar1.exe, eicar2.exe, eicar3.exe…. and put the 15 copies of it in a folder. Then set NOD32’s real time protection to Standard Cleaning and opened the folder. NOD32 removed all the eicar copies as usual immediately. (Stating that each of the files were quarantined – deleted) After all the 15 eicar copies were removed, I opened NOD32’s quarantine, but found that only less than 15 copies of eicar were left in the quarantine (as opposed to the 15 files detected) but when I repeated the same test with the same number of eicar files, the number of files quarantined always was a “random number” but “always less than 15” NOD32 had deleted some files without quarantining them. When I repeated the same test with “Strict Cleaning” the same problem was experienced. But when I set NOD32 to “No Cleaning” and did the test (Clicking the “Clean” or “Delete” button 15 times in the Real-time protection threat alert window, all 15 copies were quarantined properly. Kindly replicate my test using the “Standard Cleaning and Strict Cleaning” in the real-time protection, and verify whether there is a bug that NOD32 failed to quarantine all the copies. If found to be a bug, please reply and confirm it. If this is not a bug, then kindly explain the reason why this happened.