When trying to install the Autodesk Inventor Nastran 2021.1 update using the Desktop App; it gives the following error after downloading: "Administrative privileges are required for installing or configuring the product.", but no windows password/login pops up in order for Admin privileges to be granted.
With every other update on the Desktop App, it has always downloaded and then opened a windows pop-up asking for sign-in details (Admin username and password), but with this update it doesn't.
Have tried deleting the update download and retrying several times, but it does the same thing each time.
Any easy way to fix this?
