Windows 8.1 No USB Devices Working

[Enstage]

Hey,

I've been working at this for about 3 hours trying to fix this issue.

I booted up my PC today, and when I got to the Windows 8 login screen all my USB devices were not function. Lights off and everything.

I can use my keyboard and mouse in the BIOS, but as soon as I see the Windows 8 booting screen everything goes dark.

You need to understand that I have 0 control over windows right now, so changing things in the windows settings is not an option. I have tried the following:

- Cleaning the inside of my computer

- Changing everything in the BIOS to their default settings

- Only having one device plugged in

- Only using USB 2.0 ports

- Changing power cables

- Booting from my Windows 8 installation drive

- Booting in safe mode (I had to use the command line from my Windows 8 install disc, my computer now always boots in safe mode, no matter what drive I use)

- Using different devices

- Repairing my PC

The only thing I haven't tried is reinstalling Windows, so I'm posting here in a last attempt to prevent the reinstall. That and using a PS2 keyboard/mouse.

I would REALLY appreciate some help!

[Enstage]

Oh, I have an ASUS Z87M-Plus motherboard.

[Guest trucker2]

I had similar thing happen with an a68h MSI board. I had to use the motherboard driver disk to get the mouse to function. I don't know if it applies

[Enstage]

How would I do that? I have the disc.