OneDrive for Business Unlink PC with Powershell

PowerShell Help
3
With precaution, (in Windows) you can unlink OneDrive accounts using the registry; just wrap it in a PowerShell function.
To fully unlink an account, there are two registry keys to delete as per this Microsoft forum post.
Though this script does work, test it thoroughly before deploying in production. Ensure all needed data is fully synced.
Function Remove-OneDriveBusinessLink {
    [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'High')]
    param (
        [Alias("UserPrincipalName")]
        [Alias("UserEmail")]
        [Alias("EmailAddress")]
        [MailAddress]$Account
    )

$<span>accountsRegKeyPath = 'HKCU:\Software\Microsoft\OneDrive\Accounts'</span>



    # Get subkeys matching “Business” (may be more than 1)

$businessSubKeys = (Get-Item $accountsRegKeyPath).GetSubKeyNames() -match ‘^Business’


    # Loop through subkeys and find the one with the specified Account matching the value of

# the UserEmail property

foreach ($subkey in $businessSubKeys) {


    $oneDriveAccountKeyPath = Join-Path -Path $accountsRegKeyPath -ChildPath $subkey</span>



        if ((Get-ItemProperty -Path $oneDriveAccountKeyPath -Name UserEmail).UserEmail -match “^$Account$”) {


            Write-Output “Found $Account in $oneDriveAccountKeyPath”


            # Get the DisplayName. This is the only way to reference another registry key that

# needs to be deleted

$displayName = (Get-ItemProperty -Path $oneDriveAccountKeyPath -Name DisplayName).DisplayName

$oneDriveName = “OneDrive - $displayName”


            # Get all subkeys in below regkey location. The subkey containing (Default) value matching

# DisplayName will be deleted

$desktopPath = ‘HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace’

$desktopSubKeys = (Get-Item $desktopPath).GetSubKeyNames()


            foreach ($subKey in $desktopSubKeys) {


                $subKeyFullPath = Join-Path -Path $desktopPath -ChildPath $subKey


            if ((Get-ItemProperty -Path $subKeyFullPath).'(Default)' -eq $oneDriveName) {</span>



                    if ($PSCmdlet.ShouldProcess(“Delete OneDrive registry keys for $Account”)) {


                        # Found (Default) value matching DisplayName

# Safe to delete all relative keys


                    <span>Write-Output "Name is ""$oneDriveName"""</span>



                        Remove-Item -Path $subKeyFullPath -Recurse


                        Write-Output “Deleted (Default) in $subKeyFullPath containing “”$oneDriveName”“”



# Delete the account key path

Remove-Item -Path $oneDriveAccountKeyPath -Recurse

Write-Output “Removed $oneDriveAccountKeyPath”


                    </span><span>Stop-Process -Name OneDrive
                    Write-Output "OneDrive process stopped"
                }
            }
        }
    }
}



}

Once OneDrive has been stopped, use File Explorer to open the OneDrive folder and confirm all the synced data will be there - done it many times.
Proceed to uninstalling OneDrive (if applicable).