This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
New Teams has been advertising itself to many of my users. Majority of the company has made the switch, but others are running into a parameter error. Strange bit is, I can get it to work for about 5 days. Afterwards, I'm guessing an update takes place, and New Teams refuses to open and throws a parameter error. I've tried reinstalling the application multiple times and downloading the app installer. Nothing seems to work.
C:\ProgramFiles\WindowsApps\MSTeams_23285.3607.2535.937_x64__8wekyb3d8bbwe\ms-teams.exe
The parameter is incorrect.
Additional meeting and call-related features and issues within Microsoft Teams for business
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
I can confirm Marc_D_As post. Since last few days with any version of New Teams App, we have to wait about 5 minutes to start New Teams App.
Sometimes faster, sometimes slower. Don't believe that this has someting todo with AV excludes.
Suprise. Today New Teams works as expected without something changed. We're now on New Teams 23335.232.2637.4844 on Server 2019 also on Server 2022.
Don't know what has changed, but today it is working.
We also facing same issue with Server 2019 also with Server 2022 running the latest New Teams App 24004.1307.2669.7070.
Also we have the latest FSLogix release (FSLogix 2210 hotfix 3 (2.9.8784.63912) and SentinelOne AV without above described
exlcudes.
With version 23335.232.2637.4844 on Server 2022 we hadn't any issue including latest FSLogix and without SentinelOne excludes.
Rolled back to the last working version 23335.232.2637.4844 does not solve the issue. Looks like there was something changed
in the background by MS.
no progress here. clicking Ok to the parameter error and waiting 10 minutes or so and Teams will open when run from the Start menu. Any sooner than that, a couple of clicks on it will generate a please wait while we finish deploying this application message will pop up. If we remove our Sentinel AV, which has all the following exclusions, new teams will run instantly.
Exclusions for FSLogix:
Our PM software is Delinea for what it's worth. Doesn't seem to matter if it's installed or not for this issue, so we're of the mindset it has nothing to do with that.
Same issue here within our Citrix xendesktop enviroment. Have you made any progress?
As soon as we disable AV it works fine with no error. If we leave Teams for a bit after the error it auto loads after about 20 minutes but sometimes sooner.