I have a Gigabyte H55-U2D MB and used info/downloads from the below post to mod bios, install cert and used OEM key. I cant post URL links yet so had to remove them from post: '02-14-2010 02:42 AM #13242 gwrench's Avatar gwrench Quote Originally Posted by amdddd View Post please Mod bios for windows 7 -Motherboard : Gigabyte H55M-UD2H -Bios Revision : F7 (new) -Bios Type : AWARD -Bios SLIC : 2.1 (Gigabyte or Dell) -Bios Link : thanks for advance Motherboard : Gigabyte GA-H55M-UD2H BIOS Version : F7 BIOS Type : Award SLP : Dell SLIC : Dell Method : SSV3 Modified BIOS Link : Modified by : gwrench Certificate Included : Yes Tool : With Award BIOS Mod Tool v1.33 by AndyP This has been working fine for a couple of months, but have recently got a 'Windows Not Genuine' error. I revisted the readme and textfiles from the download, uninstalled the current key and tried with another Dell Ultimate OEM key ( slmgr.vbs -upk/slmgr.vbs -ipk ). I reboot after installing the new key, however, I still have the same error. Does anyone please have some info on what I could be doing wrong ? I'ved just noticed that Windows activation (from System) states that I must activate today, does that mean I lose access to my system completely soon ?