An Azure internet of things security solution including hardware, operating system, and cloud components.
Hi @95504669 - Azure Sphere can be rebooted using the power management functions documented here https://learn.microsoft.com/en-us/azure-sphere/reference/applibs-reference/applibs-power/function-power-forcesystemreboot
The powerdown sample covers the scenario of shutting down the device and waking up after a certain interval - https://github.com/Azure/azure-sphere-samples/tree/master/Samples/Powerdown/Powerdown_HighLevelApp
Devices check for updates every 24 hours or when they are rebooted. Currently, there's no command to force update check.