Based on office 2021 volume license official , Office 365 style last version not supported official by volume license !
Plz can you show me the picture of Windows 8.1 with Office 2021 just now? The latest Office 2021 is on October 2021.
bypass are needed for windows 8.0 https://forums.mydigitallife.net/threads/abbodi1406s-batch-scripts-repo.74197/page-116#post-1777702