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How FDE preboot can be configured to skip the detection of PS/2 and instead use the native UEFI protocol for keyboards
Technical Level
Solution ID
sk180154
Technical Level
Product
Endpoint Security Client
Version
E87.x
OS
Windows
Date Created
26-Oct-2022
Last Modified
13-Dec-2022
Symptoms
Various problems with keyboards in FDE preboot on UEFI machines, for example it enters random keys into the user field, CAPS shows when it is not on, or CAPS shows but the characters are not capitalized.
Cause
On machines in UEFI mode, the default setting to detect keyboards in FDE preboot is to first try to use the (old) PS/2 controller. On some machines, this interface causes problems.
