BatchPatch and the Windows Update Control Panel Report a Different Number of Available Updates

Why does BatchPatch sometimes report a different number of available updates when compared to what is being reported by the control panel Windows Update interface on the target computer? This might be the most common question we receive from BatchPatch users. Today I’m going to explain all of the possible reasons why this might occur.

  1. Search Preferences: Usually when someone is seeing a different number of available updates reported by BatchPatch for a particular target computer when compared to that same computer’s Windows Update control panel, it’s because of the search scope in BatchPatch. BatchPatch might be searching a broader scope or a more narrow scope than what the Windows Update control panel is searching for.

    Under ‘Tools > Settings > Windows Update‘ review the ‘Search Preferences’ section. If you want to see every possible update then set your search to include all software updates and all driver updates. That is what we recommend for WSUS users because your WSUS approvals will control which updates are presented to target computers, and you want to make sure that BatchPatch sees every update that is presented. However, if you are using Windows Update or Microsoft Update as your search source, then we instead recommend limiting the search to only ‘Important‘ and ‘Recommended‘ updates. This will most closely mimic what Microsoft presents in the Windows Update control panel interface.

  2. Server Selection: It’s possible that BatchPatch is instructing the target computer to search for updates from a different source than when the computer searches for updates without BatchPatch. If you want to make sure that BatchPatch is using the same source as the target computer’s Windows Update control panel then make sure to select ‘Default / Managed‘. Selecting one of the other options in the BatchPatch settings will instruct BatchPatch to override any settings on the target computer to instead use either Windows Update or Microsoft Update as the search source.

    Default / Managed: Uses the target computer’s existing configuration to determine where to search for updates.

    Windows Update: Bypasses the target computer’s configuration and searches for updates on Microsoft’s public server. Includes only Windows updates.

    Microsoft Update: Bypasses the target computer’s configuration and searches for updates on Microsoft’s public server. Includes Windows updates AND updates for other Microsoft products. Before using Microsoft Update, target servers must be opted-in to the service. See ‘Actions > Windows Updates > Opt-in…

  3. Stale Results: The Windows Update control panel interface on the target computer might be showing stale results. Particularly in newer operating systems, the update list in the interface is cached and can frequently show results that are no longer accurate, whereas BatchPatch always performs a fresh search. You might want to force the Windows Update control panel to perform a new search to make sure it’s showing results that are accurate and up to date. See this posting for more details.
  4. Offline Mode: If you have enabled offline mode you will likely notice a discrepancy between the available updates that are reported in BatchPatch as compared to the available updates reported in the Windows Update control panel. This is because offline mode is designed for offline scanning when no internet or WSUS is available. An offline mode scan relies on the WsusScn2.cab file that Microsoft releases each month. This file contains all security updates along with various other updates, but it does not contain every update that is published on Microsoft’s public Windows Update and Microsoft Update servers.
  5. Dual-Scan: Even if you did not specifically enable “Dual-Scan” it might already be enabled on your computers without you even realizing it, due to the way that Microsoft deployed this “feature”. In this case your Windows Update scans might be searching Microsoft’s public Windows Update servers instead of your own local WSUS server. See here for more:

    **Dual-Scan Difficulties with Windows Update on Windows 10 Versions 1607 Anniversary Update and 1703 Creators Update

    **Deciphering Dual-Scan Behavior in Windows 10

  6. SCCM: If you have SCCM in your environment you need to be aware of the fact that once SCCM takes control over a WSUS, that WSUS cannot be used by a non-SCCM application like BatchPatch to search for updates. So, if your target computers are configured via Group Policy to search for updates on a WSUS that is controlled by your SCCM server, then when BatchPatch initiates a scan for available updates it will always report ‘No applicable updates’. In order to use BatchPatch with a WSUS, the WSUS must be independent and cannot be linked to or controlled by SCCM.
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