Improper shutdowns..... How to fix?

First separate a shutdown that hangs from an abrupt power loss or restart, because they require different diagnostics. Note the exact time of the next incident and inspect Event Viewer > Windows Logs > System for Kernel-Power event 41, unexpected-shutdown event 6008, bug-check data, WHEA hardware errors, disk errors, and the events immediately beforehand. Event 41 only confirms that Windows did not shut down cleanly; it does not identify the cause. If BugcheckCode is nonzero, preserve the memory dump and investigate that stop code. If it is zero and no dump exists, check power delivery, battery or power supply, temperatures, memory, and firmware. Return any overclocking to defaults and install current BIOS, chipset, storage, and graphics drivers from the device manufacturer. For a shutdown that merely stalls, perform a clean boot and run DISM followed by SFC. Change one item at a time and track whether the failure returns.