Event ID is 41
is just a event that is logged when a system is rebooted after a shutdown did not complete.
it is recorded on the boot after the bad shutdown.
and it indicates that the dirty bit was detected on the next powerup and that chkdsk has to run to check the file system.
for the most part you have to figure why the system did not complete the proper shutdown before powering up again.
ie system bugcheck, system power loss, someone hit the reset button. something overheated and the motherboard protection circuit resets the cpu.
there are error conditions where the system does not complete a shutdown but the screen goes blank. Windows will not complete a shutdown if it thinks it will loose data. Mostly this is data that is written to disk but the disk does not confirm the write. Windows waits for the signal that the write has completed but never gets it and just sits there with the screen turned off. People then hit the power button and then reboot. (and the error is recorded on the reboot)
for this last error it is most often caused by firmware in the drive, sometimes by old chipset drivers. generally, you would first try to update the cpu chipset drivers, then the drive firmware if you can.
if that fails you would then turn off the drive write behind cache
(to work around the bug in the drive)