Windows 10: How to convert Windows 10 GPT disk to MBR with re-install?

Hello friends,

My current config:
Laptop = HP Pavilion sleekbook 14
BIOS = UEFI
HDD = 500GB with GPT style
OS = Windows 10

I want to rebuild it with MBR partition style (for experimental reasons) and took complete backup in external drive so I do NOT need to preserve data for this method.

What I did so far:
1) Prepared 16GB pen drive with Windows 10 using Rufus by choosing option of "MBR partition type for Legacy BIOS"

2) took complete backup of my laptop

What I will do next:
1) Goto BIOS and change BIOS to "legacy" and disable "secure boot"
2) Boot with USB drive
3) Press shift+F10
4) run diskpart and list / select / "clean" and then run "convert mbr" and continue with the installation.

Will the above method work? if not, please advise. I need to guide someone remotely who doesn't have another laptop hence being very careful before starting the installation.

Any help appreciated, thanks!

:)

 

3TB Drive format windows 10 not working

This is because your hard disk is MBR disk, you can check it in Disk Management.
which only supports 2 TB drive. so the only way to get your space backup is to convert your disk back to GPT disk. Disk management can only convert a disk to MBR when it is empty. Therefore, you need a third party software to

convert MBR to GPT on Windows 10 without affecting the OS, such as AOMEI Partition Assistant.after installing this software, the Convert mBR/GPT wizard will guide you through the process. How to Convert GPT to MBR or Convert MBR to GPT without Losing Data?

 

Windows Installation

On EFI systems, Windows can only be installed to GPT disks. If you use MBR disk, you will receive this error message: Windows cannot be installed to this disk. The selected disk has an MBR partition table. You can convert MBR to GPT and try it again.

 

It should work. I have done that method on my desktop and my laptop without any problems.