Error 30174-4

First off, I was with a MS Support person who was working on my machine remotely for 4 hours and still could not fix the problem. Believe me, everything that was identified in here has been done. Its been escalated to level 2 who will contact me tomorrow. There has not been a problem in buying the CD and downloading it that way. If level 2 cannot fix the problem that might need to be the route I have to take....

Just got off a call with Dell's Office 365 Support and thought I'd add a link that helped us through this error. I assume the install is nearly the same with Home, or other versions.

In our corporate environment, we use a WatchGuard firewall, and this prevented the installer from reaching activation URLs/IPs. See this article below for a full list of URL's and IP's.

https://technet.microsoft.com/en-us/library/hh373144.aspx

Once we added these URL's and IP's our install moved along perfectly. If you have any sort of firewall beyond your workstation, be sure to check these settings.

JC

I struggled with this error for two days straight. I even had a Microsoft tech remote in and he was unable to resolve, ultimately deciding to take the computer down for a chkdsk and then disappearing. 

I was finally able to get this to work - I followed the steps for how to manually uninstall Office 2013 on the Microsoft site - I had run the Fixit about a dozen times, but to no avail.

Many of the folders and registry keys the article mentions did not exist, but I followed the directions as best I could. I think what actually fixed this (in my case) was Step 5-7 where it says "Delete the FFPackageLocker folder." - Only mine wasn't called FFPackageLocker - it was called ClickOnceLocker or something similar. 

Once I deleted this file and then worked the rest of the steps outlined through Step 7, I tried running the Office 365 install again - and my hope began to rise as it cleared 70% (previously it crapped out with the 30174-4 error at around 58%-64%). Fianlly, it reached 100% and began installing!

So, in my case I believe all I really needed to do this whole time was go in and delete either C:\ProgramData\Microsoft\Office\ClickToRunPackageLocker (or C:\ProgramData\Microsoft\Office\FFPackageLocker had it existed) and the install would have worked.

If you're pulling your hair out, this easy fix is worth a shot. If it doesn't work, you may try following the rest of the steps at https://support.office.com/en-au/article/manually-uninstall-Office-2013-or-Office-365-1d1110d5-75a4-4154-969e-4260ff29b232