Pending Update will fail in High Sierra I have just updated my os to High Sierra after a format. Through the App Store app, a version update was required (namely macOS High Sierra 10.13 Supplemental Update) so I did it.

Then as it was installing I encountered the following error,

The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged

I tried to fix it using some details from here. However the find command couldn't locate the missing file. For the record I entered all the commands in the aforementioned post.

So I went trying some stuff (which I don't quite remember) and somehow I managed to boot my computer normally (boots in the update resulted in a continuous update loop that I managed to exit). And now I have the same update pending in my App Store and of course I want to execute it.

Now, I wouldn't want to fall back to the bad update situation so I was thinking maybe to download the update again. 

How can I delete the files from the bad update?

Is this strategy going to make any difference?

(running on a MacBook Pro 15-inch 2016)
Try downloading the update from Apple's website rather than through the App Store, and installing from that package.