If you run Windows 10 and are curious about the updates Microsoft will be jamming down your throat in the next few days; if you run Windows 7 and want to know what you’re missing out on by not being rich enough to afford Microsoft’s Extended Security Updates program; or if you’re running Windows 8.1 and want to know a bit more about the updates you’re about to install, read on.

Analysis of Microsoft’s comprehensive — yet still oddly difficult to navigate — Security Update Guide for this month reveals that there are sixty-five distinct updates and associated bulletins. Actually, since Microsoft is now calling these things ‘articles’, I’ll do the same. So there are sixty-five articles with associated updates, many of which are packaged into bundles: one with all the month’s updates, and one with only security-related updates.

The updates address a total of one hundred and twenty vulnerabilities in the usual lineup of Microsoft software: Windows (10, 8.1, and 7), Office (2010, 2013, 2016, and 2019), Internet Explorer 9 and 11, Edge (the one built on Chromium), .NET, SharePoint, and Visual Studio.

As is usual these days, Windows 10 updates are installed at Microsoft’s whim, Windows 7 updates are out of reach for most folks, and Windows 8.1 updates are installed via Windows Update in the Control Panel.