Keyboard Drivers Becoming Disabled

Keyboard *drivers* becoming 'disabled' (1st usb, then ps/2); show "!" In hw-lst, but win-diags find nothing wrong. This is a most peculiar problem. First my usb kbd driver went dead. At first i didn't notice it, as i was using the mouse, primarily, for input, but remember a hw-rejected sound from windows earlier upon logging in.

My keyboard wouldn't do anything. No led toggles - etc, but on another machine, fine, and on same machine 'fine' - until windows comes up, then kbd goes dead (once bios drivers are no longer driving kbd, likely).

Under keyboards, the hid keyboard driver showed a small yellow triangle with an ! In it.

After trying  reinstalling the driver (its the stock ms driver), upgrading it (no upgrades), repair ("nothing can be found wrong, maybe the driver is corrupt", but file kbd_hid.sys, checks out w/valid ms sig), i decide to hook up a ps/2 keyboard. It worked for all of maybe 20 seconds. Then a low hw reject message as win7 disconnected my ps/2 kbd! Unbelievable! Now both my hid kbd driver and the 'standard ps/2 keyboard driver show up with the yellow triangle with a "!" In it. But i can't figure out what's doing wrong with the.

I also tried system restore to day before any of this happened - no go. I figured going back further would be a waste, since the start of the problem was rather clearly defined.

I *thought* i had caused it when i tried to enter a sw policy restriction to forbid 'wisptis.exe' from executing - (the onscreen digital ink input dealy) - for two reasons - it kept getting in the way and i couldn't figure out how to get it to turn off (i wanted to use my tablet's native drivers, but wisptis was interfering and making the tablet good for nothing but digital ink (handwriting recognition as keyboard input)).

The final straw came when i was looking through my logs and found the security log (~20mb log) mostly full with security failures from wisptis.exe (i turned on monitoring of security failures, only, thinking that failures, should be rare in properly acting sw, and this software was clearly violating win7's own security policy!).

It was after i added the policy that the usb keyboard went dead.

But that policy went away from the first 'backstep' (system restore point) - but the keyboard didn't come back. After that it was downhill for the ps/2 driver. So, to be clear, the policy is not in the security panel - it was back to pre-init state (no sw policies in effect) after the 1st system restore. So that 'had' to be coincidence. But it felt oddly coincidental, that the only 'keyboad' type inputs left to use on the system were the on-screen keyboard and the digital-ink keyboard. (Mouse paths/drivers are unaffected).

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