My Asus Sabertooth 990FX R2.0 mobo's U.E.F.I. version 2005 (current version) states Secure Boot is enabled. Msinfo32 state's it isn't in Windows 8.1 Pro w/Media Center x64. All software, driver's and U.E.F.I. are up to date. Any idea's on how to fix this ? This is after a clean install of 8 Pro w/Media Center x64 and upgrade to 8.1 Pro w/Media Center x64, this past Tuesday. All other issue's I had with 8.1 before have disappeared. Nothing crashes anymore now and System Image worked perfectly. System Reserved Partition states it's 100 mbs.