Computerworld - https://www.computerworld.com/article/3268942/microsoft-windows/you-won-t-believe-why-the-win7-monthly-rollup-kb-4093118-keeps-installing-itself.html#tk.rss_all
Yesterday, I talked about the weird bug that makes April’s Win7 Monthly Rollup, KB 4093118, re-install itself over and over, even when Windows Update says that it’s been installed successfully. Windows sleuth abbodi86 has discovered the source of the problem, and it should give you patching pause.
To understand how we got into this mess, you need to understand the bugs that Microsoft introduced in the March Win7 patches and their kludgey patches. Installing either the March Monthly Rollup (KB 4088875) or the March Security-only patch (KB 4088878) may knock your machine off the network. As Microsoft says: