This step requires an internet-connected PC to pull the latest patches from Microsoft. WSUS Offline - Update thy Windows - Dedoimedo
Microsoft WSUS Offline Update: A Complete Guide to Offline Patching
: Continue to manage updates for older versions like Windows 7 or 8.1 through specialized "ESR" (Extended Support Release) versions. Step 1: Downloading the Tool The tool is available for free under the GNU GPL license. Visit the official WSUS Offline Update website .
: Download large updates once and distribute them to multiple computers via USB or network share.
: Skip the often slow and error-prone initial Windows Update scan on freshly installed machines.