Forum Discussion
Developer Preview is automatically reactivated in Teams
I have been seeing this exact issue for several weeks now on one of my work PCs. I'm wondering if there is something that needs to be removed from the registry. I was also wondering if this issue could be related to my Office release channel. To see your office release channel, open Outlook (or any office app), then go to FILE > OFFICE ACCOUNT. Under 'About Outlook', mine shows 'Current Channel (Preview)'. Perhaps this channel setting is just a coincidence though.
I believe you are on to something, I have just recently been the recipient of this plague that has crossed multiple tenancies now. Different builds have crept into Preview status. This feels related to MS Teams just wanting to be in Developer Preview mode.
I'm investigating further and will test created a local offline build editing the XML to change the channel of the build to see what happens.
I uninstalled Teams and deleted all the app data folders I could find ('C:\Users\<user>\AppData\Local\Microsoft\Teams' and 'C:\Users\<user>\AppData\Roaming\Teams'). I even cleared out what I could find in the registry, but eventually this problem came back. I could have missed something, but this make me more suspicious that it has something to do with the "Current Channel (Preview)" version I am seeing in Office.
Because I suspected the Office channel as part of the problem, I then changed from "Current Channel (Preview)" to just "Current Channel". I found that you can do that that by setting/changing the following string value in the registry:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun\Configuration]
"CDNBaseUrl"="http://officecdn.microsoft.com/pr/64256afe-f5d9-4f86-8936-8840a6a4f5be"It took several days, but the issue came back unfortunately. I'm still open for ideas, as this is not fixed.