If you ever tried the infamous “Update and shut down” option in any Windows build, it often leads to a reboot instead to an actual shutdown. Now, Microsoft has finally fixed this issue starting with Windows 11 25H2 Build 26200.7019 (or 26100.7019 on 24H2). According to the Windows Latest, Microsoft has shipped this broken functionality way back with Windows 10, and has never fixed it since. However, the Windows teams working behind the update have finally managed to ship a working solution with a note stating in Windows 11 experiences that the new build: “Addressed underlying issue which can cause “Update and shutdown” to not actually shut down your PC after updating.”
It’s probably because your computer has quick boot turned on which isn’t actually fully shut off. More like a deep hibernate which can still receive magic packets that can turning it on for updates and such. If it’s a work laptop it’s almost certainly because your work has set up so it wakes up when they push an update. It’s more of an issue with how your work has set up group policies. You can turn off magic packets in advanced network settings if you have admin access to your computer, which you may not if it’s a company laptop.