topic Re: Install Error - Application tried to modify a protected Windows registry key in Installation & Licensing Forum

Install Error - Application tried to modify a protected Windows registry key

Anonymous — Fri, 18 Aug 2017 17:14:18 GMT

Good Afternoon,

I seem to be having a problem getting AutoCad LT 2018 to install. It gets on step 4/8 and then fails, when I check Event Viewer I see multiple MsiInstaller Errors with the following error description.

--> The application tried to modify a protected Windows registry key.

Any ideas what might be causing this?

Thanks,

Ryan

Re: Install Error - Application tried to modify a protected Windows registry key

pendean — Fri, 18 Aug 2017 17:39:36 GMT

You forget to turn off your anti-virus and firewall during the software install?
or forget to log-in as a Windows Admin first?

Re: Install Error - Application tried to modify a protected Windows registry key

Mark.Lancaster — Fri, 18 Aug 2017 19:34:01 GMT

@Anonymous

It sounds like you don't have the proper permission or like @pendean run your installation as the admin. Also, without your installation log file we can only speculate what the issue is. Post your installation log file.

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.