Hi friends, Recently I have a purchased a new Samsung laptop and it is installed with Windows 7. But Trojan.Sasfis all of a sudden infected my system and made my laptop very slow. It takes a long time to boot up and shut down. I have tried many antivirus software to remove this malware but none of the application are able to remove it. Even if it is removed once, then after every boot the virus comes back. Does anyone have any solution to fix this issue? Thanks
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