I recently built the October 3500 machine http://techbuyersguru.com/3500-ultimate-gaming-pc-build The only difference from this build is that I have only one 1080 graphics card at present.
All was fine for a few days, and now windows hangs at startup. I get to the nice picture but nothing on the keyboard or mouse makes the text fly upwards and the login prompt to appear. I have tried the following:
1) New keyboard and mouse
2) Tried to boot in safe mode, but there is no way I can find (all 4 methods appear to require use of mouse and/or keyboard)
3) Attempted to boot from the original windows 10 flash drive. Tried to 'repair' but this failed.
4) Disabled 'fast boot' in BIOS
5) reinstalled windows 10
Problem persists. Its as if the OS doesnt recognize anything USB related. Mouse and Keyboard work fine in BIOS and indeed if I boot from the windows flash drive.
The only non-standard thing I did during the build was to disable secure boot as I wanted an Ubuntu partition. However, at this point I have reinstalled windows and there is only windows 10 on the box (ubuntu gone to eliminate that as a possible cause)
I'm completely lost at this point. Help!
Hello, Peter, and welcome to The TBG Forum!
So, in this type of situation, where a system was working but then stopped working correctly, we have to look for any change that may have occurred. I have seen the scenario where Windows hangs in the boot screen, before arriving at the lock screen, but I've never seen a hang at the lock screen itself, which is what you describe.
It sounds like Windows is actually getting all the way to the lock screen, so it's not a system crash or hang. You just can't access the lock screen. The reason that the mouse and keyboard (and therefore USB ports) work fine in the BIOS and when booting from the Windows flash drive is that Windows drivers haven't been loaded (and aren't required in those interfaces). It also means this is not a hardware failure. It could be as simple as a Windows update that knocked out the USB drivers.
The first thing I'd do is return the UEFI BIOS to optimized defaults (that's an option available in the UEFI boot menu). This will set everything back to the original factory settings. Did you actually get through the process of reinstalling Windows 10. At some point in that process, a keyboard is required. Was it working during the reinstall process (for instance, where you choose your user name)? If so, that again suggests that the problem is very specific, and isn't preventing the USB ports from working entirely. If you didn't finish the reinstall process, I would definitely try that again, and I'd suggest removing any additional partitions on the drive that were dedicated to Ubuntu.
Now, one thing to consider, if you're using the Asus X99 ROG Strix
that has been the recommended motherboard for this build since it was released, is that this board has a serial port. In a worst case scenario, you could buy a Logitech PS/2 Keyboard
to see if it will allow you access to the lock page, at which point you would also be able see if your USB peripherals begin to work. If they do, you could shut off the lock screen temporarily until you find a solution. PS/2 devices do not require drivers, which is why they can work when USB devices fail.