@paul
I read your posting 2 ways..
1. Installing the 2020 version
2. Installing an update
Which one is it?
Without your installation log file we can only speculate what the issue is at this point. So attach your installation file here so we can review it.
Posting info: Sometimes the installation log file contains the serial # that was assigned to you. Open your log file using Windows Notepad and perform a search on "/SN". Depending on the number of installation attempts, your serial # may be located throughout the log file. If present, remove or "X" out your serial # prior to posting.
Have you updated the 2020 licensing mechanism? https://synergiscadblog.com/2019/07/24/autodesk-licensing-mechanism/
Mark Lancaster
& Autodesk Services MarketPlace Provider
Autodesk Inventor Certified Professional & not an Autodesk Employee
Likes is much appreciated if the information I have shared is helpful to you and/or others
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