Hello,   Sorry for my reply. I am only an F-Secure user (their home solutions). Just some generic suggestions:   -> possible to try contact their official Support Channel (chat as example): https://www.f-secure.com/en/web/home_global/contact-support should be useful for proper investigation (freeze). -> good to know what is your OS? Windows 7? Windows 10? In addition, what is your F-Secure TOTAL version (though it should be recent one); possible to check it by Rightclick F-Secure tray picture and choosing "About". -> if I understand it properly - freeze is fully applied to system and not only to scan process? Is it visible which item is scanned before freeze? And maybe good to doublecheck that any other security software is disabled. -> did you try to restart system (rather than shutdown/turn on back)? Just as check. There was a discussion and different topics about "freezes during scan". For example, next ones: https://community.f-secure.com/t5/F-Secure-SAFE/Manual-scan-freezes/m-p/101888 https://community.f-secure.com/t5/F-Secure-SAFE/Internet-Security-Full-Scan/m-p/98785 https://community.f-secure.com/t5/F-Secure-SAFE/F-secure-SAFE-Manual-Scan/m-p/109162 Where possible to read some suggestions or solutions. In addition, another option is try to reinstall F-Secure SAFE (part of F-Secure TOTAL subscription). Possible to perform clean up by F-Secure Uninstallation Tool before further reinstallation (good to use normal uninstallation flow by designed steps and then clean up).   Thanks! ... View more