Install failures, system freezing, reboot loops

August’s Patch Tuesday for Windows 11 21H2 failed to install with error 0x80073701 for many users. Those who forced it through experienced system freezing and reboot loops. XPS Viewer broke. IE mode tabs became unresponsive in Edge. The update embodied the classic Windows Update dilemma: not installing it leaves you unpatched, but installing it might make your computer unusable. Either way, you lose.