I meant to download from the official Microsoft site.
Kudos on getting your mum on Linux! I was unable to keep mine on it : /
Maybe I’m missing something, but this is from the “Download Windows 11 Disk Image (ISO) for x64 devices” section from the official Microsoft site, but I don’t see any option to buy or mention of it:
Before you begin downloading an ISO Make sure you have:
- An internet connection (internet service provider fees may apply).
- Sufficient data storage available on the computer, USB, or external drive you are downloading the .iso file to.
- A blank DVD disc with at least 8GB (and DVD burner) to create a bootable disc. We recommend using a blank USB or blank DVD, because any content on it will be deleted during installation.
- If you receive a “disc image file is too large” message while attempting to burn a DVD bootable disc from an ISO file, consider using a higher capacity Dual Layer DVD.