To save time, install the Convenience Rollup (KB3125574) , which contains years of patches in one file.
KB4474419 (Required for the system to recognize modern digital signatures). Microsoft Windows 7 Update s
If your Windows Update is "stuck" checking for updates or giving errors (like 80072EFE), community tools like Legacy Update can restore the native Windows Update service. To save time, install the Convenience Rollup (KB3125574)
If you prefer not to use third-party tools, you must manually install "bridge" updates first so the system can communicate with Microsoft's servers. To save time
Run the installer. It will automatically install missing prerequisites like SHA-2 code signing support and Servicing Stack Updates .