I had major issues with this.
I attempted to download the update, but was having connection reliability issues. I discovered there was a driver update for my router but once I downloaded that my whole system started crashing and freezing.
I uninstalled all my drivers and began reinstalling them one by one until I verified that the driver for my graphics card was the wrong one.
I borrowed a friends computer and, after spending a couple of hours trying to work out which one of the thirty graphics card drivers that were available was the correct one for me, downloaded it, transferred it, installed it, then re-installed all my other drivers again. I then proceeded to download the original update again.
Unfortunately, the download got to 97% then disconnected.
I started all over again and, after getting only two blue screens of death, appear to have successfully got this installed.
However, I'm probably going to have to upgrade my CPU, motherboard, and possibly the just sorted graphics card to get it all running a bit more smoothly. These updates can be time consuming and expensive!
Oh, wait a minute.
None of that happened at all.
That was my old WINDOWS system.
With my Apple, it all just worked.