CS6 will not update, say program is still open when it is not. How do I close it?

I tried to update CS6 and it crashed the computer.(Win 7- 64bit) After a System Restore, I still had to reinstall CS6. It works fine now, but refuses to do any updates. (Camera Raw 7, etc) It says "Please close the following applications to continue. Adobe Photoshop CS6 (Photoshop.exe)" The program is not open according to the Task Manager. I have been trying everything on the site. CC Cleaner for Adobe, et al. Please help, what am I missing?