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RobertWPB's avatar
RobertWPB
Brass Contributor
Mar 04, 2020
Solved

Error code - caa30190

Unable to sign into Teams Desktop client after updated username. -application has been reinstalled. -reinstalled mail account for windows. able to access all other Microsoft applications. -able to...
microsoft teams
  • Jorgga's avatar
    Jorgga
    May 05, 2020

    RobertWPBI had the same problem on W10. Ran teams in compatibility mode as W7 and worked on first try.

MicrosoftX's avatar
MicrosoftX
Copper Contributor
Jan 27, 2021

RobertWPB 

 

Steps you performed to fix the issue is by indeed correct but one secret step is missing here. This fix i discovered  when i had the same issue.

 

At first, Login to your old user account/any other user accounts which are already logged into this machine after disconnecting the internet and uninstall the teams from programs. once teams is uninstalled delete  C:\Users\%username%\AppData\Roaming\Microsoft\Teams folder.

 

Now, Sign out from that account and sign back in to your user account. uninstall the teams from programs. once teams is uninstalled delete  C:\Users\%username%\AppData\Roaming\Microsoft\Teams folder.

 

Install teams now. it should work for you :).

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