New Teams prompting "The parameter is incorrect" error.

No real solution. The error has mostly gone away, although it does return on occasion. We updated to the latest version of New Teams. I would say that for the most part, THIS error has gone away. There are other issues that continue, but this is mostly gone.

To resolve this, I typically delete the Teams Machine-Wide Installer and then reinstall it. Once I've completed the reinstallation process, I install it again. This method has consistently resolved the issue for me.

For anyone with this issue, there is a fix you can apply until Microsoft pull their finger out.

This parameter it is referring to is the "autostart teams" checkbox. Even unticking it (if it even lets you as most of the time you cannot even interact with it) will not work and it instead needs to be done via regedit.

I have made a GPO that does two things, the first being amending or deleting the following keys and folders:

REGISTRY

COMPUTER LEVEL

DELETE

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run32

Value name: Teams

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run32

Value name: TeamsMachineInstaller

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\StartupFolder

Value name: Microsoft Teams (work or school).lnk

USER LEVEL

UPDATE

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run

Value name: com.squirrel.Teams.Teams

Value type: REG_BINARY

Value data: 01100000a9a989ca3496da01

HKEY_CURRENT_USER\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MSTeams_8wekyb3d8bbwe\TeamsTfwStartupTask

Value name: state

Value type: REG_DWORD

Value data: 0

FOLDERS

DELETE

Folder path: %userprofile%\AppData\Roaming\Microsoft\Teams

Folder path: %userprofile%\AppData\Roaming\Microsoft\MsTeams

The second being running a powershell script OnLogon, you may need to amend it to match your specific environment setup:

# Define the path to the WindowsApps folder
$windowsAppsPath = "C:\Program Files\WindowsApps"
 
# Get all folders in the WindowsApps directory starting with "MSTeams_"
$teamsFolders = Get-ChildItem -Path $windowsAppsPath -Directory -Filter "MSTeams_*"
 
# Initialize variables to hold the highest version number and corresponding folder
$highestVersion = "0.0.0.0"
$latestFolder = $null
 
# Loop through each folder
foreach ($folder in $teamsFolders) {
    # Extract the version number from the folder name
    $version = [System.Version]::new(($folder.Name -split "_")[1])
 
    # Compare the version number with the highest version found so far
    if ($version -gt $highestVersion) {
        $highestVersion = $version
        $latestFolder = $folder.FullName
    }
}
 
# Output the path of the folder with the highest version number
if ($latestFolder -ne $null) {
    $exePath = Join-Path -Path $latestFolder -ChildPath "ms-teams.exe"
    if (Test-Path $exePath) {
        Start-Process -FilePath $exePath
        Write-Output "Microsoft Teams launched."
 
        # Get the current user's desktop folder
        $desktopPath = [Environment]::GetFolderPath("Desktop")
        # Define the shortcut file path
        $shortcutPath = Join-Path -Path $desktopPath -ChildPath "Microsoft Teams.lnk"
        # Check if the shortcut already exists
        if (Test-Path $shortcutPath) {
            # If exists, delete the existing shortcut
            Remove-Item $shortcutPath -Force
            Write-Output "Existing shortcut replaced."
        } else {
            Write-Output "Shortcut created."
        }
        # Create the new shortcut
        $WScriptShell = New-Object -ComObject WScript.Shell
        $Shortcut = $WScriptShell.CreateShortcut($shortcutPath)
        $Shortcut.TargetPath = $exePath
        $Shortcut.Save()
        Write-Output "Shortcut created on desktop."
    } else {
        Write-Output "ms-teams.exe not found in the latest folder."
    }
} else {
    Write-Output "No Teams folder found."
}

For everyone's benefit, the only way to address this issue "the parameter is incorrect" at the root, is to use FSLogix Hotfix 4, which is now planned for GA on May 14th:

https://techcommunity.microsoft.com/t5/fslogix-blog/announcing-release-date-for-fslogix-2210-hotfix-4/ba-p/4129512

For everyone's benefit, the only way to address this issue "the parameter is incorrect" at the root, is to use FSLogix Hotfix 4, which is now planned for GA on May 14th:

https://techcommunity.microsoft.com/t5/fslogix-blog/announcing-release-date-for-fslogix-2210-hotfix-4/ba-p/4129512

Hi Fernando,

This may be a bit of a longshot asking this here, but would this fix, or a parallel version, available to be implemented in Citrix’s profile management solution?

Many thanks from a previous colleague.

Steve