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RevitCat - Revit Consultant

Monday, 15 April 2019

Download and Installing Revit 2020

Yesterday I received notification from Autodesk that my Revit 2020 download was available, so I thought I'd get in ahead of the rush - this was more out of curiosity than a desire to start using the new features in the software.  Here are my experiences with the download and install process:


The first thing I noticed is that the download size has doubled since last year.

15.8 Gb 

What on earth could they have put in there, I wondered?
Luckily I remembered from a previous experience that the 'Install Now' option is most definitely NOT the fastest way to download & install the software.  Avoid that option whatever you do.

The download files have been split into 7 parts (each 2+Gb) - there were only 3 for v2019.  This download took several hours (not sure if it is the slow Internet in Australia, or I didn't manage to beat the rush?).  Either way it took a huge chunk of my hard drive

Install - File Extraction

The first part of the install process is to extract the download files - this requires another 15 Gb for the extracted files, and about 15Gb of free space for the extraction.  That means you will need at least 45Gb free space on your hard drive before starting.  I had to cancel out of the extraction process when it ran out of space after about 15 minutes - then do some cleaning up.  It would have been nice if the installer had checked for enough space at the beginning!

Then of course once the installer starts up, it requires a whole lot more space.  If this is an issue, you could wait until the extraction has finished, then shift the original download files off the hard drive to a safe storage place - once the actual Install screen appears.

But first, lets see why the install files have doubled in size, compared to v2019:

The answer is the Content Folder - it has 6.3Gb of 'Revit' content.  It seems that the content has now been bundled in with the installer - a change from previous years.  I'm not sure if it is good or bad?  There is a lot of stuff in there that I don't need - all those different country libraries and templates.

Why is the US Metric library twice the size of any other folder?  What are we missing out on in the rest of the world? 


 When you finally get to the actual install screen, before you start, don't forget to check the settings, with that tiny drop-down arrow

  • Make sure you untick the two MEP Fabrication configurations (unless you happen to want both imperial and metric)
  • Set your discipline (although you can change the UI settings later)

  •  Check your content settings - Autodesk knows who you are and where you are, so it should be right!

Installing entertainment - every year the slide-show of images gets less and less relevant to the construction industry, and this is no exception - with the possible exception of the last one.  I've said it before, but most of these images could not possibly be created using Revit - not even by Marcello Sgambelluri!

  • My first task is to uninstall 'Autodesk Desktop App', which was not an option to disable.


One of the new 'Features' of Revit 2020 is a tighter integration of Dynamo:
"Integrated Dynamo Revit 2.1 into the Revit 2020 release"

Last year the integration of Dynamo in the install process was a nightmare - it completely screwed up earlier versions of Dynamo/Revit - so it was with some trepidation that I checked out what was going to happen:

Well, it seems to have installed Dynamo 2.1 with Revit 2020, and it left earlier versions well alone.  I had Dynamo 1.3.3 installed in Revit 2017, 2018 & 2019 - and all of those appeared to be intact.  There is some more information on this here.

Well, Autodesk have made a huge change to how Dynamo is installed and upgraded from Revit 2020 onwards.
  • The version of Dynamo that is installed by the Revit installer is controlled by Autodesk (currently 2.1, but this will change over time).
  • Updates to Dynamo will also be controlled by Autodesk, and will be rolled out as part of typical Revit updates.
  • You will not be able to separately uninstall/reinstall Dynamo versions for 2020 onwards.
More on this in the next blog post on Revit / Dynamo Versions.
So far I think this will be a very good thing, once we get over the transition period.

Revit Un-Help

Same as Revit 2019, I find that the help link on the ribbon does not work if you install with British English.  It is looking for help files with 'ENG' rather than 'ENU', which is the US English version:


All in all, the install process was incredibly slow but went fairly smoothly compared with previous years.  Now it is time to start investigating the new features - and if you are an Architect, as I am, the list is fairly lean.  The list looks quite a bit longer for Electrical, MEP, steel & reinforcement.
If you are a Landscape Architect, look no further - there is no list at all!

Detailed analysis of Path of Travel here

[Edit]  Space Junk

A lot of unwanted stuff is included in the extracted install files as well as in the actual installation of Revit - refer to Revit 2020.2 Install postscript and Space Junk


  1. Thank you for this informative advise..It solved my problems.

  2. Good Morning or Night, very informative thanks for taking the time to share. Devon