File System Changed From FAT32 To NTFS

Hello and thanks for allowing me to post.

My normal OS is Ubuntu 22.04 but I needed to take some certifications and for that I had to have Windows 10 or above.
So I installed win 10 on an SSD and took the certs, all good.

Some time later I had to put the win 10 SSD back in but I forgot to unplug an internal HDD (1TB 70% used) which was FAT32.

Windows 10 has done something to the format of the drive (even though I never mounted the drive afaik) and now it reads as NTFS which Ubuntu has a darn hard time to read and is ridiculously slow (if it reads at all)!

Could anyone please tell me what Win 10 did to my drive so that I may be able to undo the damage without losing 700 + GB of files?

Thank you for any assistance with this problem.

Samuria said:

Can you show it on a screenshot from disk manger.

I can but only from linux (else I need to put the Win 10 SSdD back in)



Not sure if that helps??

Win 10 can not have formatted the drive from FAT to NTFS else all the files would be gone (afaik) ... so what did it do to make the drive NTFS?

Samuria said:

Window has a simple cmd to change 32 to ntfs you can reverese it .... snip .... Windows only allows it to create partitions of 32GB.

It would seem that I cannot as it is well over 32 GB and the options in the link given can't do greater than that!

What did Win 10 do?

Samuria said:

Can FAT32 Support a 1TB Hard Drive? The simple answer is no, it cannot.

Samuria said:

FAT32 has a limit of 2TB hard drives

I am sorry and I may be being a tad daft but the two above statements do not seem compatible?

Thank you for your help .... most kind