Please excuse that I answer so late. I am the first time in a forum, I discovered by accident that you have responded. I have my program again uninstalled and reinstalled, and I had time off my virus protection. Now the error is gone. I thank you for your support. Have a nice weekend.
Premiere Elements 12 on Windows 7 (assumed 64 bit)....
Very pleased to see that you have resolved your Premiere Elements 12, Error 1 issue, using an uninstall/reinstall.
Just two questions....
1. Was the solution doing the uninstall and reinstall, but with the antivirus and firewall(s) disabled?
2. Have you updated 12 to 12.1 Update, using an opened project's Help Menu/Update? If not, please do so.
Best wishes as you move forward with your Premiere Elements projects. Great job.