As zbook already mentioned:
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Studynxx, is the issue solved?

I did test the two drives: the system (SSD) and data (HDD) drives. I ran chkdsk x: /f and run Crystal disk info. No problems found.

If the SSD from the old dead PC had Windows on it you should delete all partitions, not only format the Windows partition.

Open a CMD window as administrator and type:

diskpart
list disk (it...

Fast startup

What happens if you don't take out the PSU cable of the monitor and when it enters windows you move the mouse or hit esc ?
Is fast start enable? If it is, turn it to disable. Fast start is more part...

How big was the J: partition?
To find all the partitions on the drive, open a CMD window as administrator and type:

diskpart
select disk 0
list part (It will list all partitions)
exit (to exit...

If your computer doesn't meet the requirements you can still upgrade from Win 10 to Win 11 with a workaround.
How to upgrade from Win10 or Win 11 to Win 11 23h2 - A guide | Windows 11 Forum

Thanks Dalchina. How can I enable the boot log from a WinPE (I can't boot the main drive)?

My wife's computer is quite old (Z68 - i7 2600k, 4+4 G DDR3 2133, 128G SSD + 1T HDD). Win 10 - 64b 22h2
It was working and one day it began to fail during startup. It began to boot from the SSD and...

Win 11 has some hardware requirements. If your computer doesn't meet the requirements you can still upgrade from Win 10 pro to Win 11 pro with a workaround.
How to upgrade from Win10 or Win 11 to...

Do you have bitlocker?
Please describe how did you get into audit mode and run sysprep. What are you trying to achieve with sysprep?

Win 11 can't be downgraded to Win 10. You have to do a Windows 10 Clean Install, that is, boot from a Win 10 USB installation drive as UEFI, delete all partitions and then proceed.
Some precautions...

You can prepare a light Win 10 32 bits and do a clean install
What is Tiny10 (Lightweight Windows 10) and How to Install It | Beebom

There is no way to upgrade with only 32G of drive space.
I suggest you replace the 32 GB eMMC with a 64 GB eMMC and do a Win 10 clean install.
There are ways to make a Win 10 light version.

You must have at least 20 to 30 G free drive space to to an upgrade as it will save the current on a Windows.old folder in case you want to return to the current version.

Transfer some data...

Drive letters are assigned to partitions by the OS it is booting from.
Suppose you have two drives with Windows. If you boot from any of them, the windows partition that is in use will have the...

Make it simple as possible. Disconnect all devices from the MB
- Disconnect all drives from the MB
- Remove the graphics card (if it has one)
- Remove the memory sticks (with power supply...

As it says, the drive has sectors that has been moved (reallocated).
Old PATA drives are slow and in this case I wouldn't trust even for backups

What is TIA John?

The procedure I've described above is called "In place upgrade" and should keep data and programs.
As S... can happen, is always recommended to make a drive image and save on an external drive so...

Boot into Win 7.
Insert the Win 10 usb installation drive created with MCT and run Setup.exe.
It will end with Win 10 home. It wont be activated.
Go to activation (settings) and select change key....

I agree with Pentagon. I have a small SSD (128G) and it has Windows (85G) and Linux (43G) and there is plenty of free drive space on both partitions.
It is always a good idea to have the OS on a...

A drive may have more than one partition.
Letters may be assigned to partitions (some partitions don't have letters assigned to them). Windows assign numbers to drives. Drives (or disks) don't have...

As suggested, use Windows disk cleanup (%windir%\system32\cleanmgr.exe)
On the bottom select clean system files.