除了纯粹的批处理脚本，集成化的工具如 Office-Installer 也提供了实用的转换功能。
Volume-licensed Office 2019 remains at Version 1808 (with updated builds) by design, while retail editions receive ongoing feature updates. If you need the latest features, consider migrating to Microsoft 365 Apps instead.
Download ODT and create a configuration.xml file with Product ID="ProPlus2019Volume" . Remove the retail license: cscript ospp
Remove the retail license: cscript ospp.vbs /unpkey:XXXXX (Replace XXXXX with the 5 characters).
Is this for a or an enterprise network environment ? Open Command Prompt as Admin
cscript ospp.vbs /sethst:kms-server-address cscript ospp.vbs /act
: Manually remove current retail keys before re-running the script. Open Command Prompt as Admin. Navigate to the Office folder: cd "C:\Program Files\Microsoft Office\Office16" Check status: cscript ospp.vbs /dstatus Uninstall current keys: cscript ospp.vbs /unpkey: Check Script Settings : If using KMS_VL_ALL , ensure the variable is set in the script to enable the auto-conversion feature. Official Solution: Reinstall as Volume Look for ProPlus2019Volume or Standard2019Volume .
Obtain the official ISO or setup files from the Volume Licensing Service Center (VLSC) or your organization’s admin portal. Look for ProPlus2019Volume or Standard2019Volume .
