Hi friends. So 29th is finally there. I forced upgrade from win 7 with Code: wuauclt.exe /updatenow and upgrade started immediately. I am using modified bios with MSI slic 2.1. Now windows 10 says it won't activate. SLICTOOL says it OEM Cert not found. I added it manualy, restarted but it won't helped. Time for testing. Any toughs?