Mouse/keyboard stopped working

[LKireev]

(IT'S NOT A LAPTOP. USING WINDOWS 8.1)
I restarted my computer and now all of my USB ports don't work on the desktop, but they still work in BIOS, and I can access the F2 and F8 menus. I tried restoring an old version of windows but it gives me an error. And also, now the Wi-Fi and the sound displays with a red cross near their icon.

-I tried disabling my XHCI, it didn't do anything.

-I even tried ps/2 port, it didn't work either.

-I tried restoring an older version of my computer it didn't work and gave me an x800 error every time on every backup I had. (I had around 4)


My keyboard and mouse are in working conditions, USB still give out power. Please help, I've been having this problem for five days now, I need my computer for work. Please.

 

[Ztruker]

What anti-virus program are you using? Have you run a full scan?
Also download and scan with Malwarebytes Anti Malware (free version), see if anything is found.

Test memory and hard drive:

Download Memtest86+ (you want the 2nd one Download - Pre-Compiled Bootable ISO (.zip)). Unzip it then create a CD from the iso file using your CD burning software. There is a good freeware burner called ImgBurn which will do this easily.

DO NOT burn the .iso file directly to CD. It must be used as input to a program that knows what to do with it, like the one I mentioned above.

You can do this on any computer that has a working CD Burner.

You can also use a Flash drive instead of a CD.

Download - Auto-installer for USB Key (Win 9x/2k/xp/7) *NEW!*.
Unzip and run Memtest86+ USB Installer.exe.
It will format the flash drive if you tell it to. I used a small, 16MB flash drive and it had 8.5GB left when done.

Boot the CD or Flash drive and run Memtest86+ for at least 3 complete passes unless it shows errors sooner than that. An overnight run is even better.

Check the hard drive with the manufacturer's diagnostic tools.
7 Free Hard Drive Testing Programs
Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.
Bootable Hard Drive Diagnostics