How to disable a keyboard?

"You may use devcon from Microsoft

The DevCon utility is a command-line
utility that acts as an alternative to
Device Manager. Using DevCon, you can
enable, disable, restart, update,
remove, and query individual devices
or groups of devices. DevCon also
provides information that is relevant
to the driver developer and is not
available in Device Manager.

the link contain a detailed page about how to use it,

for your case, just put

devcon find *

To lists device instances of all devices that are present on the local computer.then,

devcon disable [ your-keyboard-HardwareID ]

to disable devices that match that specific hardware or instance ID"

"The only way is to physically disconnect the keyboard.

See this article : ""Repairing the keyboards of Compaq laptops"".

If what the guy describes in the above page solves the problem, you might save yourself the trouble.

If it doesn't, then repeat the operation, but just omit the described step 8 and do not reconnect the cable.

(I take no responsibility for any mistakes in the execution of this operation.)"

"+1 for the answer provided by fabien7474! With one slight difference - my Asus UL56V with Windows 7 showed ""Keyboard Device Filter"" and ""HID Keyboard Device"". By disabling the second option, I ended up disabling the USB keyboard :) But disabling Keyboard Device Filter by changing to a Japanese keyboard did the trick for me!

P.S. No one on the whole Internet managed to come up with such an elegant fix for such a common (and serious) problem!

Cheers!"
"+1 for the answer provided by fabien7474! With one slight difference - my Asus UL56V with Windows 7 showed ""Keyboard Device Filter"" and ""HID Keyboard Device"". By disabling the second option, I ended up disabling the USB keyboard :) But disabling Keyboard Device Filter by changing to a Japanese keyboard did the trick for me!

P.S. No one on the whole Internet managed to come up with such an elegant fix for such a common (and serious) problem!

Cheers!"