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On Screen Keyboard fails during preboot authentication on HP EliteBook Revolve 810 G2
Technical Articles ID:   KB82878
Last Modified:  8/2/2017

Environment

McAfee Drive Encryption (DE) 7.1.x

Hewlett packager (HP) EliteBook Revolve 810 G2

For details of DE 7.1.x supported environments, see KB79422.

Problem

On Screen Keyboard (OSK) will not accept any input during preboot authentication on the HP EliteBook Revolve 810 G2.

NOTE: The system passed the UEFI tests to verify the tablet responds to the touch interface as outlined in KB78050.

Cause

The Fast Boot option is enabled in the BIOS.

Solution

Access the BIOS and disable the Fast Boot option.

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