Edit “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client” (!!記得備份)
On the right pane, make note of the value of the Version key.
Double-click Version and change the value to 4.5.
Close the Registry Editor and then install your Autodesk software.
Once finished, go back in to REGEDIT and change the .NET version back to what it was.
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