Installing this month's Windows Server security update has knocked some enterprise domain controllers into continuous reboot cycles.
Although software updates are supposed to fix problems, it appears that the latest Patch Tuesday release is causing major headaches for Windows Server admins due to DC boot loops and Hyper-V issues.
Update: Microsoft has released out-of-band updates to address this issue on April 20. Microsoft has confirmed that some Windows domain controllers are entering restart loops due to Local Security ...