Here are the main methods using which you can convert an AZW eBook to MOBI format on Windows 11/10: Use Calibre to convert AZW to MOBI. Try a dedicated converter software to convert AZW to MOBI.

Optionally, to enable on-the-fly conversion from one ebook format to another when using the send-to-ereader feature ... or C:\Program Files\calibre\ebook-convert.exe) in the field "calibre's converter ...