Hi Owen Zhang,

Thanks for reaching out. Unfortunately, versions 7.90 and 7.91 (like BusinessVision 2018/2019) have received their final updates and are not listed as available for download. This means that for full compatibility with Windows 11, you might need to consider upgrading to the Sage BusinessVision 2023 edition.

If you require the BusinessVision 7.91 version specifically and it's not available through the standard download portal, I recommend reaching out directly to Sage Support. You can email them at [email protected] or use the chat feature provided in the download portal for more personalized assistance. They can provide further guidance.

For more information on the available downloads and system requirements for Sage BusinessVision 2023, you can visit their download portal here: Sage BusinessVision: Download Portal.

Warm Regards,
Erzsi