Error 0x80073701 when trying to install Windows Server Backup on Server 2019

The error code 0x80073701 indicates that there is a problem with the installation package for Windows Server Backup on Server 2019. This error can occur for a variety of reasons, some possible causes are:

1. Corrupted installation package: The installation package may be corrupted or damaged, try downloading a new copy of the package and then try installing it again.
2. Missing dependencies: The package may be missing some dependencies or prerequisites that are required for the installation to complete. Try installing any missing dependencies before installing Windows Server Backup.
3. Conflicting software: There may be conflicting software or processes running on the server that are preventing the installation from completing. Try disabling or uninstalling any conflicting software.
4. Insufficient disk space: The server may not have enough disk space to install Windows Server Backup. Verify that there is enough free disk space on the server and clean up unnecessary files.
5. Incorrect permissions: The user may not have the necessary permissions to install Windows Server Backup. Verify that the user has the appropriate permissions.
6. Incorrect version of the package: Verify that the package version is compatible with your version of Windows Server 2019.
7. Problem with the server: Sometimes, issues with the server can cause problems with the installation. Try restarting the server or check the event viewer for any error messages.
8. Windows updates: Verify that the server is up to date with all the latest windows updates and security patches.

It's important to check the above points, and if the issue persists, you can try to install Windows Server Backup using PowerShell

Here is a PowerShell script that you can use to install Windows Server Backup on Server 2019:

Copy code
# Check if Windows Server Backup is already installed
$check = Get-WindowsFeature -Name Windows-Server-Backup

if ($check.Installed -eq $false) {
    try {
        # Install Windows Server Backup
        Install-WindowsFeature -Name Windows-Server-Backup -IncludeManagementTools
        Write-Host "Windows Server Backup has been successfully installed."
    } catch {
        $errorCode = $_.Exception.HResult
        Write-Host "An error occurred while installing Windows Server Backup. Error code: $errorCode"
    }
} else {
    Write-Host "Windows Server Backup is already installed."
}
This script first checks if Windows Server Backup is already installed on the server. If it's not installed, it attempts to install the feature and handles any errors that might occur. If Windows Server Backup is already installed, the script will display a message that it's already installed.

You can run the script by opening a PowerShell console as an administrator, and then running the script by typing the name of the script, for example, if the script is in a file named 'install_wsb.ps1' you should type '.\install_wsb.ps1' and press enter to execute the script.

0x80073701 = ERROR_SXS_ASSEMBLY_MISSING which means there are some system files are missing, which caused the update installation failure. You can also try a repair install by running setup.exe from the root of the install.

I wouldn't hold much hope for this, time may be better spent standing up a new one, patch fully, migrate the roles or applications over, and move on.

--please don't forget to upvote and Accept as answer if the reply is helpful--

Hi. Thank you for your question and reaching out. I’d be more than happy to help you with your query.

Start SERVER 2019's Windows Powershell and navigate to C:WindowsSystem32>lpksetup.

Remove the French, German, Korean, and Japanese languages by selecting "Choose uninstall display languages." The languages package will need to be uninstalled in two to three hours.

Install Telnet Client in Server 2019 this time after removing the languages, opening the Server Manager Dashboard for the first time.

If the reply was helpful, please don’t forget to upvote or accept as answer, thank you.