Do I Need to Convert My C Drive from MBR to GPT to Install an NVMe SSD?

I have Windows 10 and an Asus Z97-AR motherboard. My C (OS) drive is a SATA SSD. My present problem is that the PC does not recognize the NVMe in its M.2 port despite the motherboard boot system being UEFI BIOS. I have finally discovered that the C drive (OS) is MBR partition style, whereas it needs to be GPT for reasons of UEFI compatibility. Can I convert the MBR to GPT without having to wipe the C drive and the OS with it?

Best Answered by

Roxanne· Answered on May 17, 2023

According to what you say, your NVMe SSD can't be recognized by the computer in its M.2 port. To help you fix the problem, I prepared three options that you can try to make your NVME SSD detectable. Before going through the details, reinstall the NVME SSD to ensure it's not a connection error.

1. Enable PCIE Support

Quick steps to enable PCIE support as below:

Step 1. Restart your PC and press F2 or Delete to open the BIOS window.

Step 2. Select "M.2_2 PCIE Storage RAID Support" under the "Advanced" part.

Check its status to see if it's enabled. If this method doesn't work, continue to try the next.

2. Switch the boot mode

Ensure your computer can support Legacy BIOS before operating. Then, you need to disable the UEFI mode to set up the Legacy mode in the boot settings. If the above two solutions can't solve the problem, you may need to convert the disk from MBR to GPT.

3. Convert MBR to GPT

You can convert the MBR to GPT without wiping the C drive and the OS on it by using EaseUS Partition Master. Its disk converter feature allows you to convert disk between MBR and GPT quickly and safely.

Free Download 

Windows 11/10/8/7100% Secure

Follow the easy steps to convert your system disk from MBR to GPT using EaseUS Partition Master:

Notice: No data will lose when converting MBR to GPT via EaseUS Partition Master, but backing up the whole disk would be necessary to prevent an unexcepted data damage.

Step 1. Download and launch EaseUS Partition Master on your PC using the above button.

Step 2. Check the "Convert MBR to GPT" function from the "Disk Converter" tool, and click "Next."

Step 3. Choose the SSD to convert to GPT and select "Convert" to run the process.

People Also Ask

How Can I Use 4TB on Dell Poweredge 840, Help

If you cannot use a 4TB disk on Windows Server, you need to convert your MBR disk to a GPT disk. This short article will provide a quick solution to help you use 4TB on Poweredge 840.

Cici

Mar 01, 2023

Is It OK to Convert GPT to MBR While Windows 10 Is Installed? Any Ideas?

Do you want to know: Is it ok to convert GPT to MBR while Windows 10 is installed? This article will answer your question and guide you to convert GPT to MBR.

Roxanne

May 11, 2023

Error: Windows Can't Be Installed on MBR, Convert to GPT

Have you ever encountered such an error that says: Windows can't be installed on MBR, convert to GPT when installing a higher Operating System? This post will give you a full guide on how to fix this problem.

Roxanne

May 05, 2023

What Are MBR, GPT, and EFI Partitions? I Need Details

What are MBR, GPT, and EFI partitions? Many users are unfamiliar with the three partition schemes. This article aims to guide you through the conceptions and comprehensively understand MBR, GPT, and EFI partitions.

Roxanne

May 11, 2023

How to Install OS on RAID 6 Greater Than 2TB, Help

How to install an OS larger than 2TB on RAID6? Don't worry. This article will provide a quick solution to help you break the 2TB limit on Windows Server.

Cici

Mar 29, 2023

4TB WD Only Recognized 2TB by RAID Controller, How to Fix

It may be a confusing error that your 4TB WD drive is only recognized as 2TB by RAID Controller. This short page will help you fix this error, and you can fully use your 4TB WD drive.

Cici

Mar 27, 2023