The Update log window disappears as soon as an update completes. This means the user cannot revise the log or download it. I suggest at the end, a pop-up is displayed with the log in it for easy review and download if necessary. 
The Update log window disappears as soon as an update completes.
This means the user cannot revise the log or download it.
I suggest at the end, a pop-up is displayed with the log in it for easy review and download if necessary.