Opera Mini for Windows 10 Mobile has been retired from the Microsoft Store since 2017. Because development for the Windows platform has stopped, the official Opera Store link now only provides the standard Opera browser for PC.

files on third-party archival sites, installing them on Windows 10 Mobile requires specific sideloading methods. Direct Download Links (Archived)

WindowsViet

: Provides archived Opera Mini XAP/APPX files for Windows Phone, including older versions.

Recommended search string for safe archive:

"Opera Mini (version) .xap Windows Phone 8.1 Lumia"