Hi, thanks for your quick response, it was (x86). Anyway the folder is now full of KIS files, all is working properly :) I think I’ll make a fresh Win installation as now some Win update service seem to be not working (wuauserv). I can send the report to the tech support, do you think they might be able to tell me how this all happened? I looked into the Win logs and realized that KIS stopped working on May 25, I didn’t install anything a week before. I did install a cracked game before that, but played for an hour and removed as I realised it’s boring… Maybe it left a virus, which had waken up a week or 2 later…