Understanding the Background of WSUS: Windows Update
In response to the original concerns about the difficulty in keeping computers properly patched, Microsoft made available a centralized website called Windows Update to which clients could connect, download security patches, and install those patches. Invoking the Windows Update web page remotely installed an executable, which ran a test to see which hotfixes had been applied and which were needed, based on the Microsoft components installed on the machine. Those that were not applied were offered up for download, and users could easily install these patches.
Windows Update streamlined the security patch verification and installation process, but the major drawback was that it required a manual ...
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