We often recommend against open a project created with an older version of Premiere Elements with a newe version of Premiere Elements. It almost always leads to corruption. Even if this corruption isn't immediately visible.
This would be particularly true if your projects were created in version 4. That's a HUGE leap to version 12 -- and the program has been almost completely retooled since then!
Finish your work in an older version of the program. Then start your new projects in version 12.
Excuse me, I guess I wasn't clear enough. Sorry about that. I'm using the same Premiere Elements 4. The only thing that changed was the windows upgrade.
Red Truck inc.
I have Premiere Elements 4 in Window 7, 8, and 8.1 64 bit. No problems. In Properties/Compatibility Tab, I leave "run this program in compatibility mode for" unchecked. I do right click the Premiere Elements 4, select Run As Administrator even if I am working from a User Account with Administrative Privileges. So, look into the permissions angle a bit more.
With the thought of possible leftovers from incomplete installs or reinstall, have you done any uninstall, ccleaner run through (regular and registry parts of cleaner), reinstall?
Is that Radeon 6670 video card the only video card that the computer has? Are you on any network? Do you run a single or dual monitor system on your Windows 7 64 bit?
Just some thoughts for now.
Ran CCleaner, didn't solved the problem. Cleaned up a bunch of stuff though, thanks for the program suggestion, lol.
But, hold on! I decided to turn off compatibility mode to mimic what you have, and guess what...success!
All the projects are opening now. Wow, how crazy is that. XD Guess one must turn off compatibility mode for PE4 in 64bit. Would've never guessed.
You're my hero, Romano, thank you a ton.
Red Truck inc.
You have made my day worthwhile with your follow up news.
We are very pleased with the outcome.
Thanks for the great, great news of success. Great job.