eventcreate and EventVwr.msc Command

eventcreate /ID 1 /L APPLICATION /T INFORMATION /SO shavllik /D "Before Windows Patch Install"
eventcreate /ID 1 /L APPLICATION /T INFORMATION /SO shavllik /D "Windows patch install finished"
eventcreate /ID 1 /L APPLICATION /T INFORMATION /SO shavllik /D "Windows patch install finished and also rebooted"

Reference:
https://technet.microsoft.com/zh-tw/library/bb490899.aspx