Let’s first use the tool in a non-edit mode that will validate the partition can be converted by using the command: MBR2GPT.exe /validate /AllowFullOS.Navigate to the Windows\System32 folder if not already there.Open a Command Prompt on the system using the Administrator Mode.Open File Explorer and navigate to Windows\System32.Verify the MBR2GPT file exists on your current system:.Below are step by step instructions I used to convert my lab laptop from using MBR to GUID. For more information or requirements about the MBR2GPT tool, see this link. BitLocker conversion is supported as long as BitLocker is suspended during the process. The MBR2GPT tool is located in the Windows\System32 directory on a computer running Windows 10 version 1703 or later. This will be done without modifying or deleting any data that currently exists (this is the safe way of doing this). The MBR2GPT.exe tool from Microsoft will automate the repartition of the hard disk for UEFI directly from the Windows 10 Operating System.
There are several tools available that will allow you to quickly (and safely) modify your system to no longer use the Master Boot Record (MBR) and instead to use the GUID Partition Table (GPT). I initially lost access on my lab system. If you simply modify your system BIOS to use Secure Boot, you will likely lose access to your boot instructions on the next restart. While most systems in use today meet the hardware requirements to upgrade to Windows 11 without issue, in this case you may be thinking you just need to modify your BIOS settings to enable the Secure Boot capability.
In my case, the system is capable of this but the feature is not enabled.Ĭaution: Use Both Solution Part One and Two Below In a review of the Windows 11 Hardware Requirements, there are number of security requirements listed – including the use of UEFI and Secure Boot capable (Not Legacy BIOS). The key detail above is that the Secure Boot is Disabled.
To be clear, this is the noticed displayed by Windows 11 Setup:Ĭaution: I do NOT recommend installing the Windows 11 Developer version on your production/primary system.
The Windows 11 Setup check displayed a notice, “This PC Must Support Secure Boot.” This blog documents a workaround for the issue I had on my system (you may have a different system with a different issue/solution). I decided to download it onto a lab system to start checking it out and ran into a stop notification not long after I started the process. Windows 11 is here! Well, as of this blog being published it is available in the Windows 10 Insider Preview Development Ring.
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