Hi, Maximus Vlll Hero. rev. 1.01 OS Win 10 Pro 64 bit i7 6700K Samsung SSD 840 500GB GeForce GTX 770 I've just finished building my system this last week - with a clean install of Windows 10 Pro 64bit and for the most part it seems to be working OK, except for one problem - the system will often boot into the UEFI BIOS rather than Windows. This happens particularly if, from within Windows, you select "Restart" - it will restart, but will boot into the BIOS, not the OS. Also, when exiting the BIOS, it will often boot straight back into the BIOS again. The workaround is to press the case reset button and it will then boot it back into Windows. Booting from cold will usually take you into Windows as normal, but not always. Also, when the computer wakes from Sleep Mode, the BIOS splash screen/logo appears, and the system will enter the BIOS, not the OS. I only noticed this behaviour after I upgraded the BIOS from 0802 to 1402. I have since gone back to 1302 in the hope of curing the problem, but it hasn't helped. I don't really believe the BIOS version is the problem here, but I really do need to get to the bottom of this and sort it. The system is not overclocked and currently all BIOS settings are currently set to default. Also, I've noticed that the EFI in EzMode shows my three drives: P1.DVD; P2. 2TB HDD; P3. SSD. (The OS is on the SSD). However, in the "BOOT" menu, under "Boot Option Priorities" the DVD is not listed and is not available as an option, it lists only #1. SSD; #2. USB; #3 2TB HD. Why is the DVD drive missing? And why does it list a USB drive as option 2? (The DVD drive seems to work fine). Is this somehow related to the "booting into the UEFI" problem? Also, the system is completely ignoring the Power & Sleep Settings. It is currently set to power down the screen after 5mins, and system to Sleep after 15mins. These settings are being completely ignored and the system will stay on all day if I let it. I'm running out of ideas now, but I urgently need to fix this "Booting into BIOS" behaviour, so if anybody can help, I'm listening. Many thanks, AllanRoy.