Summary

Product:	F-PROT Antivirus for Windows
Version:	6

Why F-PROT Antivirus fails to disinfect the virus on my computer?

Please note that all infected files that F-PROT Antivirus is unable to disinfect will be quarantined. Below are several possible reasons why F-PROT Antivirus is unable to disinfect the virus:

1. The infection is located in the system volume information folder (_restore) and is therefore locked in the System Restore. For further information, see Disabling System Restore.
2. The infection is located in Windows system file. Windows locks system files while it is running and so F-PROT Antivirus does not have write access to disinfect the file. In this case you will have to use the Command-Line Scanner to disinfect your computer. For further information, see How to scan for viruses with the Command-Line Scanner.
3. The infected file is located within an archive. F-PROT Antivirus disinfect within archives but in the first layer only (files compressed once). If an archive is compressed more than once (ex. ZIP files compressed again with ZIP format), infected files cannot be automatically cleaned. The infected files will then be move to the quarantine automatically. For further information, see How to disinfect infected compressed archives.
4. The file is infected by an unknown virus; it is possible that the virus is new and has been caught by the F-PROT Antivirus heuristics engine. In this case, send us the infected file for analysis. Our virus analysts will analyze the file and if the file turns out to be infected by a virus, they will release a virus signature file to treat it. Update your virus signature and rescan your computer.
5. The virus signature file is not up to date. It is very important when performing a scan to have the latest virus signature file running on the program. The virus signature file provides F-PROT Antivirus with all the necessary information, including what to search for and how to disinfect. New virus signature file is issued regularly in response to any new emerging threats. To keep your program and the virus signature file up to date, please set F-PROT Antivirus to "Completely automatic update". This automatic update option will automatically download and install latest security updates on your computer as soon as they are available. For further information, please see How to set up automatic updates.

See also:

• How to scan for viruses with the F-PROT Antivirus Command-Line Scanner
• How to view, rescan, restore or remove quarantined items

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