Dell No Longer Boots Legacy Drives, What Can I Do

I am trying to boot these new SSDs in the new Optiplex 7060. The old 7010 system is set to legacy mode, not UEFI. But the new 7060 doesn't even see anything to boot from. How can I get these new SSDs in Legacy format to boot in a system that can only boot from a UEFI formatted drive?

Best Answered by

Cici· Answered on Jul 31, 2023

First, we need to know that different partition styles will boot differently. If the computer uses BIOS, select MBR. If it uses UEFI, select GPT. If your old SSD can only boot from BIOS, then you will need to convert from GPT to continue using it on the Dell Optiplex 7060.

Extended Reading: MBR VS GPT | What's the Difference and Which Is Better

To convert MBR to GPT, you can use Diskpart or EaseUS Partition Master. Let's look at the simple guides.

Convert to GPT via EaseUS Partition Master 

EaseUS Partition Master is an all-in-one partition master that supports you in doing disk conversion easily and quickly. This powerful tool allows you to convert MBR to GPT without data loss.

Free Download 

Windows 11/10/8/7100% Secure

Note: To avoid mistakes, it is better to create a backup if you have essential data.

Here are the steps: 

Step 1. Download and launch EaseUS Partition Master and find Disk Converter.

Step 2. Choose "Convert MBR to GPT" and click "Next."

Step 3. Select the target MBR and click "Convert."

Convert to GPT via Diskpart

If you don't want to download other software, Windows built-in tool can also help you operate. You need to erase all partitions first and then convert them. Here are the steps:

Step 1. Press Windows +R to open the command window.

Step 2. Type the following commands and hit Enter:

diskpart
list disk
select disk X
clean
convert gpt

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