Latest Build Windows 10 fail, wont allow BIOS access

Berton · 30 Apr 2015

I had a Notebook in and found that the BIOS supports only USB 2.0, the USB 3.0 ports needs drivers loaded when the Operating System loads.

DavidY · 30 Apr 2015

Tuck said:

Dont forget that W8 & 10 do not actually cold boot unless a reboot is selected, the fast boot means that the state is just a deeper sleep mode?

I must admit I've seen something like this on a VM running in EFI mode.

What (if anything) does happen when you switch the PC on? Does the same thing happen with DVD inserted and DVD removed?

Tuck · 01 May 2015

Berton, good point, I am using front USB3 port for wireless dongle, you may have saved me a tear down to access the SATA data cable!
Noooo..still prevents <DEL> access to UEFI/BIO even when in USB 2.0 native port. Looks like a teardown and SATA disconnect now.

DavidY whatever state or what is in DVD it justs fast boots into W10 installation sequence, then tells me it is unable to install and reboots.........ad infinitum.

Looks like a drive reformat and install from scratch! Good to have that option with the 10074 iso.

DavidY · 01 May 2015

Have you tried holding down the power button *while* it's in the W10 installation sequence, to switch it off in a disorderly way. That might let you in at the next reboot? You might get it to boot from the DVD that way and you could try clean installing.

Tuck · 01 May 2015

Tried it all DavidY, now have SSD out and reformatted. Video card out and ready to start from scratch! Had to remove PSU to do this so really a rebuild! Thats the wonder of a Lian Li briefcase build.

alphanumeric · 01 May 2015

DavidY said:

I must admit I've seen something like this on a VM running in EFI mode.

What (if anything) does happen when you switch the PC on? Does the same thing happen with DVD inserted and DVD removed?

I've seen Windows Fast Startup prevent BIOS access when Windows is installed on real hardware. The PC goes into a hybrid sleep mode instead of a full shutdown. Turn off Fast startup and you can get into the BIOS on boot up. http://www.eightforums.com/tutorials...ndows-8-a.html The other way to get into your BIOS (if you can boot into windows) is http://www.eightforums.com/tutorials...ndows-8-a.html Not sure how you do that in 10 though, no more control panel.

alphanumeric · 01 May 2015

Tuck said:

Tried it all DavidY, now have SSD out and reformatted. Video card out and ready to start from scratch! Had to remove PSU to do this so really a rebuild! Thats the wonder of a Lian Li briefcase build.

If you get stuck like this again try this. Unplug your power supply from the wall outlet. Then press and hold your power button for a couple of seconds. Plug it back in, power up, and cross your fingers. Same deal with a laptop, you just also remove the battery.

Tuck · 01 May 2015

Thanks for the suggestions, did all of the above regarding cold booting, not possible to do anything as no OS access and no BIOS access, now reinstalling W7 as this micro-ITX build is not suitable as a test bed. Just finishing now , had to reinstall Mobo drivers et al, and W7 updates for ever

. Already have this build W10 on another test PC so still supporting.

Slartybart · 01 May 2015

If you want to try again, make a system image of Win7 so you don't have to go through all the updates if you need to revert back.

Since you didn't provide the information I previously requested , take a look at this tutorial to see if there's something you missed. Read the boxes, they contain a lot of things many people miss when trying to DIY.

Good luck if you decide to take another crack at it.

That is all (M.A.S.H. reference)

killless · 25 Sep 2015

I can't get into BIOS anymore.
I don't see "Press F2 or del to enter BIOS" anymore! It just goes into windows immediately!