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Converting GUID Partition Table (GPT) disk to Master Boot Record (MBR) disk in Endpoint Encryption

    • Updated:
    • 26 Apr 2016
    • Product/Version:
    • Endpoint Encryption 3.0 DriveArmor
    • Endpoint Encryption 3.0 File Encryption
    • Endpoint Encryption 3.0 Full Disk Encrypti
    • Endpoint Encryption 3.0 KeyArmor
    • Endpoint Encryption 3.0 PolicyServer
    • Endpoint Encryption 3.1 Full Disk Encrypti
    • Endpoint Encryption 3.1 PolicyServer
    • Endpoint Encryption 5.0
    • Platform:
    • Windows 10 32-bit
    • Windows 10 64-bit
    • Windows 7 32-bit
    • Windows 7 64-bit
    • Windows 8 32-bit
    • Windows 8 64-bit
    • Windows 8.1 32-bit
    • Windows 8.1 64-bit
    • Windows Embedded POSReady 7 (32-bit/64-bit)
    • Windows Vista SP1 32-bit / 64-bit
    • Windows XP SP3 32-bit
Summary

GPT disks use Unified Extensible Firmware Interface (UEFI). Most new systems ship with UEFI as the default configuration. UEFI utilizes the partitioning scheme called GPT which is currently not supported.

After converting to an MBR disk, you will need to switch to Legacy BIOS mode to be able to install the TMFDE agent on the system. This requires a reinstallation of the operating system. Part of Microsoft’s hardware requirements for Windows 10 has made this switch optional to computer manufacturers.

Details
Public
 
Back up or move all volumes on the basic GPT disk you want to convert into a MBR disk.

If the pre-install check fails the partition type check, do the following:

Follow the steps in the Microsoft KB article on how to switch to an MBR disk.

Follow these steps to disable UEFI Secure Boot and enable Legacy Support.

  1. Restart the computer then enter the BIOS Setup.
  2. Using the right arrow key, gnavigate to the Security menu. Using the down arrow key, select Secure Boot and then press Enter.

    secureboot

    Click image to enlarge.

  3. Using the down arrow key, modify the setting to Disabled and then press Enter.

     disable

    Click image to enlarge.

    Using the right arrow key, navigate to the Startup menu then use the down arrow key to select UEFI/Legacy Boot then press Enter. Select Legacy Only then press Enter.

     legacy

    Click image to enlarge.

    You may be prompted that the machine will no longer be able to boot after switching to Legacy mode.

     <prompt

  4. Press F10 to accept the changes and use the left arrow key to select Yes. Press Enter to exit and save the changes.
  5. Proceed with reinstalling the operating system of the device.
 
Refer to the manufacturer for particular steps on how to disable UEFI Secure Boot and switching to Legacy Boot.
Premium
Internal
Rating:
Category:
Troubleshoot; Install
Solution Id:
1114001
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