Hi all!
I mailed Dell with this question, but never got an answer. So now I'll try it here. Yesterday I had to restore a Windows 10 image on a Dell laptop. Unfortunately something went wrong and the Windows recovery tool had to format drives before restoring the image. Little did I know that it also deleted my data partition without asking. :-( Cost me whole night to gather the most important things from backups and syncs I luckily have. Anyway, it also removed the DIAGS-partition that is mentioned in this thread. Logical, since images are only made of the system and EFI partitions.
Windows 10 runs fine again now, but there is a nag in the back of my head. Is DIAGS necessary, does Windows do anything with it? I guess not, because this laptop originally came with Windows 8.1. Last year I did a clean install of Windows 10. I actually didn't even expect that the DIAGS partition would survive it. Anyway: should I be worried about the deleted DIAGS-partition in relation to the stability of Windows 10 or are they in no way related?
Follow-up question: the diags-tool from the bios is still working fine. What is actually he difference between both tools?
The laptop is an Inspiron 7537, to be exact. :-)
Greetings,
Ronald.