System is Windows 7 Home Premium SP1 build 6701, Intel Core 5-750, 8GB RAM.
Installed Adobe Photoshop Elements 11 then Premier Elements 11 64-bit then Lightroom 4.2 64-bit. Photoshop Elements, Organizer, Premier run just fine. Lightroom 4.2 refuses to start, stating The application was unable to start correctly (0xc000007b). Click OK to close the application. Ran Raxco Perfect Registry to eliminate registry errors. Performed full scans w/Notron Internet Security, Spybot Search & Destroy, and Malwarebytes Anti-Malware. Removed any/all threats. Lr continues to repeat 0xc000007b issue. I'm running out of options. I want to run Lr 64-bit, not 32-bit. Any ideas please?