But its main benefit is the ability to update remote computers. So far, I have worked with WuInstall interactively. You can solve this by adding the /rebootcycle parameter, which will start another round of updates after the reboot.
In some cases, one reboot is not enough to apply all patches. The /reboot_if_needed parameter is needed because by default, WuInstall will not restart the computer. I was surprised how easy it is to search, download, and install updates with a single command: WuInstall.exe /install /autoaccepteula /silent /reboot_if_needed /rebootcycle 3 Now when you run the command on any other computer, it will first check whether the patch is available in the cache folder before trying to download it from the internet. Or you can create the cache and install the patches right away: WuInstall.exe /install_cache \\share\cache /nocachedel /autoaccepteula /silent /reboot_if_needed /rebootcycle 3 You can create the cache and download updates without applying them first via the following command: WuInstall.exe /download_cache \\share\cache This might be especially handy for branch offices with slower WAN connections where downloading updates from multiple computers might take a long time or cause issues with other services.
Saving bandwidth usage with cache options ^Īnother cool WuInstall feature is the possibility to create an update cache from any network share available. Note : Windows Update only offers updates for the Windows operating system itself, while Microsoft Update also covers other products like Office. Skipping the WSUS server and using Microsoft Update services This will search and download all patches available for the target system on the Microsoft Update services server. For example: WuInstall.exe /download /UseUpdateService MicrosoftUpdate You can change this behavior via the optional parameter /UseUpdateService with the options MicrosoftUpdate, WindowsUpdate, WSUS, or Default. If there's no WSUS server configured, it will use the standard Windows Update server. Therefore, if the target system is configured to download updates from a Windows Server Update Services (WSUS) server, WuInstall will search and download from a WSUS server by default. WuInstall is written in C++ and uses native Windows Update application programming interfaces (APIs).
Note : When using WuInstall interactively on a local computer, always run it from a command line with elevated permissions. The log is a simple text transcript of messages with timestamps shown from the command prompt. This will scan the computer for missing updates, download them to the Windows Update cache folder (C:\Windows\SoftwareDistribution\Download by default), copy them to D:\WuInstall, and create an additional log file. For example: WuInstall.exe /download_to "D:\WuInstall" /logfile "D:\myLog.txt"
To use WuInstall, you always need to specify a single basic option followed by optional advanced parameters.
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