If you have Veamcast installed from the Microsoft Store, you must uninstall it before installing the beta. The Store version and the beta cannot be installed side by side.
If Veamcast doesn't appear in the list, or the uninstall doesn't work, open PowerShell as Administrator and run:
Get-AppxPackage *Veamcast* | Remove-AppxPackage
Once uninstalled, proceed with the install steps below.
$ErrorActionPreference='Stop'; try { $c="$env:TEMP\vc.cer"; Invoke-WebRequest 'https://d1kty37vqcrzn.cloudfront.net/latest/Veamcast.cer' -OutFile $c; certutil -addstore Root $c | Out-Null; certutil -addstore TrustedPeople $c | Out-Null; Remove-Item $c; Write-Host 'Done - certificate installed' -ForegroundColor Green } catch { Write-Host "FAILED: $_" -ForegroundColor Red; Write-Host 'Make sure you opened PowerShell as Administrator (right-click Start > Terminal (Admin))' -ForegroundColor Yellow }
Windows has cached a link between the installer URL and a previous version of the app. You need to uninstall the old version first.
Follow the Uninstall the Store Version steps above, then click the Install Veamcast Beta button again.
The App Installer app may be missing or disabled on your system. To fix:
If that doesn't work, use the Direct download (.msixbundle) link instead, then double-click the downloaded file to install.
This is normal for sideloaded apps not published through the Microsoft Store.
Try these steps in order:
The app requires the Visual C++ and .NET Native runtime packages. These should install automatically, but if they don't:
If the issue persists, try the direct download link and install the .msixbundle file manually.
If you only see "Command Prompt", type powershell and press Enter first.
If you prefer not to use the PowerShell command, you can install the certificate manually. You must add it to two certificate stores:
Download the .cer file, then repeat these steps twice:
.cer file → Install CertificateThis means the certificate wasn't installed to the right stores. Re-run the PowerShell command from Step 1 — it installs the certificate to both required stores (Trusted Root and Trusted People).
If you installed manually, make sure you added it to both stores, not just Trusted People.