Peripherals No keyboard in device manager... WTF?

any tips to get my keyboard back? The PS/2 board(s) works fine in BIOS etc. nothing at all kb related in devmgr. I did google and tried killing off the Upperfilters entry for the kb using regedit.

Mouse (USB) is fine, using it with on screen keyboard to type this. OS is Win7-x64. no changes were made, no hardware or software added, it quit in the middle of a firefox session. I do not possess a USB keyboard to test with.

All help appreciated.

 

nip out and buy a cheap usb keyboard or use the onscreen one to run cmd as administrator and type sfc /scannow

 

No integrity violations on that scan, so I am assuming it is Driver rather than Windows related.

 

does the keyboard work in safe mode?

 

Zero, zip, nada.

No entry in DevMgr in safemode either. Also screwed if I can find a generic 104 key HID driver to install, they all seem to be specific to certain hardware.

Also, I hate the on screen keyboard.

 

Sounds like the keyboard gave up the ghost.. time to replace it?

 

The keyboards (IBM M13 and Dell AT101W) are fine. They both work in BIOS and LiveCD's (Hirens, Ubuntu, Mint), and on other PC's.

 

I would pop out and buy a cheap USB board to test that.

 

Is the i8042prt service running ? as that is the service responsible for PS/2

 

Having pinched a known working USB board, still nothing.

I can't see that service running. I ran "services" from the search bar on the start menu.

 

ctrl+alt+delete, then select task manager last tab on the right

 

Slightly problematic without a real keyboard

 

Sorry i should have said the service key in the registry
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\i8042prt
Check to make sure the Start Reg_Dword key is set to 1

 

Assuming 1 in hex, dword changed from 3 to 1. no keyboard function after full restart though.