Photoshop CS6 runs at startup automatically

As of a few days ago, Photoshop CS6 began to launch itself automatically during computer startup on Windows 10. There is no image document loaded. I've tried purging the recovery file cache, disabling all Adobe startup apps I could identify in the Startup section of Task Manager (including AdobeAAManager, Bridge, etc.), minimizing CS6 before closing the program, and even disabling Windows 10 Quick Start (which remembers and restores all open windows on the next reboot). I've run CCCleaner, SuperAntiSpyware, Malwarebytes, etc. Nothing works. Photoshop CS6 keeps popping up at startup, and it has become a real annoyance. Does anyone have any ideas?