This option is available in the main menu of MAS. You can use this script with Office C2R (Ver 16.0.9029.2167 and later) to change, add, and remove editions or change the current Office update channel.
How does it work?
Office C2R (Click To Run) has a unified installation system, meaning that whether you download a single app like Word 2021 or a full package like ProPlus2021, the core files installed are nearly identical.
The main management program for Office C2R is located at C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe
The script leverages this program to add, remove, or change Office editions. Because of Office's unified installation and delta updates, adding new editions or apps does not require a large download.
Change Office update channel
This script can also change the current Office update channel.
5440FD1F-7ECB-4221-8110-145EFAA6372F - Insider Fast [Beta] - Insiders::DevMain64256AFE-F5D9-4F86-8936-8840A6A4F5BE - Monthly Preview - Insiders::CC492350F6-3A01-4F97-B9C0-C7C6DDF67D60 - Monthly [Current] - Production::CC55336B82-A18D-4DD6-B5F6-9E5095C314A6 - Monthly Enterprise - Production::MECB8F9B850-328D-4355-9145-C59439A0C4CF - Semi Annual Preview - Insiders::FRDC7FFBC6BF-BC32-4F92-8982-F9DD17FD3114 - Semi Annual - Production::DCEA4A4090-DE26-49D7-93C1-91BFF9E53FC3 - DevMain Channel - Dogfood::DevMainB61285DD-D9F7-41F2-9757-8F61CBA4E9C8 - Microsoft Elite - Microsoft::DevMainF2E724C1-748F-4B47-8FB8-8E0D210E9208 - Perpetual2019 VL - Production::LTSC1D2D2EA6-1680-4C56-AC58-A441C8C24FF9 - Microsoft2019 VL - Microsoft::LTSC5030841D-C919-4594-8D2D-84AE4F96E58E - Perpetual2021 VL - Production::LTSC202186752282-5841-4120-AC80-DB03AE6B5FDB - Microsoft2021 VL - Microsoft::LTSC20217983BAC0-E531-40CF-BE00-FD24FE66619C - Perpetual2024 VL - Production::LTSC2024C02D8FE6-5242-4DA8-972F-82EE55E00671 - Microsoft2024 VL - Microsoft::LTSC2024
- The script has the above list in its database and only offers officially supported upgrades.
- Learn more about Office update channels here https://learn.microsoft.com/en-us/microsoft-365-apps/updates/overview-update-channels
- You can fetch the latest Office build numbers here https://github.com/ItzLevvie/Office16/blob/master/defconfig
- The script uses an official method to change the update channel:
https://techcommunity.microsoft.com/t5/office-365-blog/how-to-manage-office-365-proplus-channels-for-it-pros/ba-p/795813
VL (LTSC) channel limitations
(Applicable to 2019/21/24 VL)
Officially, the update channel can not be changed to or from a VL (LTSC) channel, so if the installed channel is a VL (LTSC) channel, only that channel will appear in the script.
Also, if the installed channel is not an LTSC channel, the script won't offer to change to LTSC.
Windows 7/8/8.1 limitations
Office C2R is no longer supported on Windows 7, 8, and 8.1.
The last available build is fixed and won't get any updates. VL (LTSC) channels are not supported on these Windows versions so they won't appear in the script.
Troubleshooting
- See here.