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for smart defrag 188.8.131.520 my avast free antivirus report infected with "FileRepMetagen [Malware]" and can't use...
That's Avast's heuristic engine warning of a potentially unwanted program. Smart Defrag is occasionally installed by other apps and the local version has the ability to install other local apps. The portable version is only ever distributed on its own and doesn't have the ability to install anything. It's up to you if you want the app or not. All major antivirus engines show it as clean: https://www.virustotal.com/#/file/2596de430eb75ac678636f972053954fdfc92d...
Sometimes, the impossible can become possible, if you're awesome!
for now i use older version i have aleady instaled from my portable app, but when i try to update smart defrag using portable app menu, antivirus don't let me to download (block download from portable app) other app is ok, only this app is blocked on download.