KeyBoard suddenly failed to type

Hi guys

I tried the following to tweat it

1. Switch from a USB keyboard to PS/2 keyboard, no avail.
2. At BIOS setting, both keyboard works, so the culprit is Win7, it think.
3. Can go into SafeMode but a "restart normally" still no resolution

Someone suggest unckecked "Turn On Filter Key" at "Control Panel\All Control Panel Items\Ease of Access Center ". Any views and suggestions please.

 

Have you deleted the USB keyboard in Device Manager? Is there an Edit in BIOS for USB keyboard. A boot up after connecting PS/2 keyboard should find it and operate with "generic" drivers. Lights should show in keyboard when comp is starting.

 

Neil, will follow your advice & revert.

 

No edit in BIOS. Device show ps/2, no lights on at boot then off. KB still not working. With usb,device shows HID device with yellow exclaimation. HOW? Now using soft KB to write this

 

Yellow exclamation in Device Manager will mean either corrupt driver or it needs deleting and restart to let MS find and install again.

 

Tried that already. I also tried to find another driver but it said the driver is the best. Someone suggested to use WinRE that is a small OS loaded with a repair USB key or DVD

 

My next move would be sfc /scannow.

 

I would just try another keyboard, it might just be dead if no lights come on when booting PC.

 

Bit of a quandary Bill. I take it from Fuzmic's statement, that he can navigate with the PS/2 keyboard when in BIOS. That sort of rules out a u/s keyboard? To get into BIOS - Delete key or an F key must be used that's why I suggested a System File Check before any other drastic move. Neil.

 

Friends, i have tried various keyboards be it PS/2 or USB, as stated keyboard work at BIOS setup. I even tried to replace the related 3 .dll that work on other win7; but same fate. Finally at power admin, as Neil suggested did a "sfc/ scannow" and it reported that the are errors that can't be resolved.

So what is next least drastic act can we do?

 

W7 Repair from DVD?

 

Mate, Last resort but i seem to remember that it said i can't repair from the same DVD that i installed, why?

 

Have you tried it? If you have changed hardware since the initial install, this may cause a problem.

 

Because i have a tweating registry backup, i got into dos prompt in repair mode but when i run dos_restore.cmd, it says "fail to find windows drive ". So still in original holding position and searching, cheers!