After upgrading to Yosemite, my tried-and-true Photoshop CS would not open.
MacBook Pro (15-inch, Mid 2012)
Operating system 10.10.5
Reinstalled Photoshop; the download is 13.0.0. Will not open.
Update to 13.0.6 will not install; this is the error message.
Adobe Photoshop 13.0.6
Installation failed. Error Code: U44M2P7
Please advise.