Andromeda R5

If you are talking about the Aurora R5, it supports Windows 10: Aurora R5 

Easiest way is using the Microsoft creation tool, create bootable windows 10 media, and use F12 during post to access the one time boot menu to boot from the USB stick.

Note: it will wipe out all existing data, so make sure to have a complete backup of your data.

Download Windows 10 

Thanks.

I think that has come up before: Andromeda R5 

I see if I can get some clarification from somebody on this model.

It's definitely an Andromeda R5. Says so on the case and in "system properties". I am in the UK. if that makes any difference.  From 2012 and still going strong, so it has served me well.

Andromeda was the Dell engineering name for the 2012 X51 R1, 2013 X51 R2, 2014 X51 R3. All three were validated with Windows 10.

Could you take a screenshot of the case where it says Andromeda? Just want to see how it's written on the case.