This article provides the information on "Shift key on keyboard not working with McAfee Endpoint Pre-Boot Authentication enabled on Latitude E7240 or Venue 11 Pro 7130/7139".
On Venue 11 Pro 7130/7139 tablets and Latitude E7240 portable systems, the shift key does not function when user enters a pre-boot password for McAfee endpoint Pre-Boot Authentication.
This issue has been resolved by updating the system BIOS to the current version.
Select and download the appropriate BIOS update from the links provided below to the Dell support website.
Article ID: SLN293085
Last Date Modified: 05/01/2017 12:50 PM