F-Secure has released a new version of its free on-demand antivirus Easy Clean.
This is a 4MB portable program which can be used to scan your PC for detecting latest threats. You can use it as your second layer of security. The scans are fast and it doesn't conflict with any installed antivirus.
Easy Clean now supports cloud so there's no need for it to download regular virus definition updates.
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Easy Clean F.A.Q.