Compaq Armada 7400 Reference Manual page 30

To remove a programmable key assignment, do the following:
1. Access the Programmable Keys utility.
2. Select the programmable key you wish to unassign by
selecting the appropriate button in the Key assignments group
box.
To unassign keys in other than the current scheme, select
Show Advanced Options and select a different scheme. If you
have never created a scheme, the Default scheme is the only
choice.
3. Select the Assign button, then select Unassigned from the list.
The icon and program name previously assigned to the key are
removed.
When the Show Advanced Options checkbox is checked,
you can unassign a programmable key by selecting the Browse
button and selecting the file 'Unassigned' from the following
directories:
PROGRAM FILES\COMPAQ\PROGRAMMABLE KEYS
95\DEFAULT
PROGRAM FILES\COMPAQ\PROGRAMMABLE KEYS
NT\DEFAULT
or
PROGRAM FILES\COMPAQ\PROGRAMMABLE KEYS
98\DEFAULT
4. Select OK to exit the utility.
Schemes are a collection of up to four programmable key
assignments that you define to your Windows user profile. You
can create multiple, unique schemes. For example, you can create
a scheme called Home that contains key assignments for programs
you use at home, and a scheme called Work for programs that you
use at work.
To add a new scheme, do the following:
1. Access the Programmable Keys utility.
2. Place a check in the Show Advanced Options checkbox if one
is not already there.