Using Windows Update on Windows 7 SP1, there is an option to enable "Microsoft Update" at the bottom to also update Office and other Microsoft applications:
Get updates for other Microsoft products. Find out more.
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This opens a webpage, which in IE 10 and earlier, allows me to enable Microsoft Update.
However, IE 11 does not show the page to enable Microsoft Update but shows a useless and unrelated help message:
Use your Start menu to check for updates
How am I supposed to enable the optional Microsoft Update service now?