Azure Update Manager not triggering updates

Question

We currently have all our on-prem servers in Azure Arc, and are usning Azure Update Manager to mange windows updates.

I have divided the servers using tags.

I have two update configurations, using dynamic scopes (based on the tags).

The one configurations, seems to be working fine, accesses updates, and installing them when the schedule tells them to.

But the other configuration, seems to miss the part where it installs the updates. It accesses and find the relevant updates, but nothing happens when the time in the schedule is reached.

It was suppose to install updates 09/23/2024 00:00:00 but nothing happens, and no indication of what went wrong. Checking the servers, I can see the updates ready to bee installed.

Can anyone point me in some direction as what to look for?

Answer

I have experience this Issue once as well in a Customer Environment. I needed to "reset" the Windows Update Policies on that specific Machine.

For this you can run the following PowerShell Script

# Define the path to the registry key
$registryPath = "HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU"

# Check if the registry path exists
if (-not (Test-Path $registryPath)) {
    # Create the registry path
    New-Item -Path $registryPath -Force | Out-Null
}

# Define the new values for the properties
$settings = @{
    "AllowMUUpdateService" = 1
    "AUOptions" = 3
    "NoAutoUpdate" = 0
    "ScheduledInstallDay" = 0
    "ScheduledInstallEveryWeek" = 1
    "ScheduledInstallTime" = 3
}

# Set the new values for the properties
foreach ($setting in $settings.GetEnumerator()) {
    Set-ItemProperty -Path $registryPath -Name $setting.Key -Value $setting.Value
}

I assume you have set the following two Azure Policies:

https://www.azadvertizer.net/azpolicyadvertizer/bfea026e-043f-4ff4-9d1b-bf301ca7ff46.html

https://www.azadvertizer.net/azpolicyadvertizer/bd876905-5b84-4f73-ab2d-2e7a7c4568d9.html

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Azure Update Manager not triggering updates

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