Upgrade to Windows 11 using Rufus.

[Bryan]

I am ok with the method but, I am wanting to install the Win11 ISO over an existing Win10 SSD but that is Legacy.

By using the Rufus method, will the SSD be converted from MBR to GPT or do I need to do that myself and if so how?

[king1]

converting mbr to gpt can be done using some partition manager programs
eg. the paid version of https://www.partitionwizard.com/
Free version works on data disks, need to pay if you want to use on a system disk.

or via MS disk manager or disk part
https://learn.microsoft.com/en-us/window...a-gpt-disk

But I don't know how successful the PW paid version is, haven't tried it. The MS version suggests all data will be lost.

I ended up backing up the data, converting to GPT then reinstalling windows..

Pretty sure the windows installer won't do this for you ...

As with everything in this area, full system backup before doing anything, just to be safe. Macrium reflect or similar...

[Bryan]

Thanks for that. I have, and have used in this case, Anomei Partition Assistant Pro and have changed from MBR to GPT. I have yet to install a newer mb before I use the HDD. However, my concern really is do I need to do something other than the MBR/GPT conversion to the HDD to allow the use of UEFI instead of Legacy BIOS on the said HDD?

[king1]

The only other thing would be checking in the mainboard bios/settings to ensure that UEFI booting is enabled and/or legacy boot is disabled...

The motherboard also needs to support TPM 2.0, plus CPU needs to be supported. I did do a wee write up of my experience with a couple of systems a few months back.
https://tmmb.co.nz/forums/showthread.php?tid=1484

[Bryan]

The board supports TPM2 and secure boot but the CPU is gen 6/7. I intend to use the Rufus Windows 11 method to upgrade the OS and will allow me to use W11. I will ensure that the BIOS will be set to UEFI.

[king1]

if you already have a functioning win 10 or earlier OS on the drive you can also do a simple regedit to bypass the cpu checks for the win 11 upgrade. That way you can just use the standard windows installers. Link is in the other thread for that... But either way works...