by boco » 27.05.2020, 01:04
For the time being, you can still use the LTS 11.9.x release for Windows 8.1, it still offers SP functionality.
Microsoft update catalog: http://catalog.update.microsoft.com/v7/site/
Windows Install media download: https://support.microsoft.com/en-us/help/15088/windows-create-installation-media