I would say that you cloned some MBR partitions from MBR drive 0 into a GPT drive 1.
A GPT drive has a MSR partition (16G) that MBR doesn't.

The cloned 1T boot partition on drive 1 also isn't...

- There is nothing like a clean install, that is, detach any other drives leaving on only the target drive, boot from a Win 10 / Win 11 USB installation drive, delete ALL partitions on the target...

Please post a whole window Disk Manager image of ALL your drives. Don't forget to expand the columns so we can read them. How to Post a Screenshot of Disk Management
If you have a MiniTool or ...

And the fan and / or HDD bearing will fail soon.

And why you need a 600M EFI partitions if MS does it with 100M?
I would have just deleted the first recovery partition. To be perfect you can use Minitool to move the EFI partition to the beginning...

The computer was ready to upgrade.

Everything you did wasn't necessary.
You had a 100M EFI partition and now you have a second on with 500M. What for?
You had a 830 M Recovery partition. Good...

To start the upgrade:
Under Win 10
- Download the USB Win 11 23h2 iso file using MCT
- Disconnect from the internet.
- Right click on the iso file and select mount.
- On the virtual drive...

Playing with partitions is a risky task so I suggest you create a Drive image on an external drive (if you have one) using Macrium or Aomei.

You didn't inserted your computer specs under My...

Read post #25

The best is Macrium Reflect but there is no more free version. Maybe Bree knows how to make Free Trials as old free versions.

It means that your Recovery environment isn't on the Recovery partition.

Open a CMD window as administrator and type:

reagentc /enable

Post the results here

I asked if you have a drive image software like Macrium Reflect or Aomei Backuper so you can fix the layout.

And the results of reagentc /info?

Open a CMD window as administrator and type:

reagentc /info

Post the results here

And the results of reagentc /info?

You have an old Recovery partition at the beginning of the drive and one at the end.

I can see you're paying attention.


sfleury as Pentagon also noticed, the command is:
Open a CMD window as administrator and type:
diskpart
list disk 0
list part
exit

You didn't follow the tutorial to insert your computer specs on your "My Computer". Please do it so anyone can retrieve the specs at any of your posts.

Your drive is already UEFI-GPT but the...

Please edit your profile with ALL your hardware specs. It will help us to help you
System Specs - Fill in at Ten Forums


Before you run mbr3gpt , please post a whole window Disk Manager image of...

I shut down my computer whenever it is not in use. A computer with a SSD boots and it is ready in less than 30 sec
I don't see any reason to let it on while not in use and I can list many reasons...

If I understood well, you leave the backup HDD always connected to the computer.
That isn't a good practice.
If you have a malware attract it will infect the computer and the backup

GerryPeters, one day all drives will fail.

Make periodic backups. That is the best action you can do to protect your data.

:thumbsup::roflmao2:

You probably moved the folder to some other folder
Windows search sometimes doesn't show what you're searching
Install Everything
On Everything insert a file name that was on the deleted folder....

As I suspected, drive 2 is Advanced Format to allow a MBR to be bigger than 2.2T.
Advanced Format was a workaround to be able to have drives bigger than 2.2T on systems (like Win XP) that wasn't...

The drive 2 must be a Advanced Format type
- It has an active partition, so it should be a MBR
- MBR has a 2.2 T limit unless it is Advanced Format

Open Disk manager.
View - Top - Disk list...

I see that you already removed the EFI and Recovery partition letters

As the drive 2 isn't boot able, lets remove the active flag

diskpart
select disk 2
select part 1
inactive
exit

The recovery environment is on the Recovery partition (as it should)
Could you please post a Disk manger image of all drives?