When I try to open photoshop it will show the icon in the dock but that's it. When I right click it says it's not responding. I tried to uninstall it but it said I had to save files before I could continue. I went to all user accounts to make sure it was closed out. Now when I click to unistall nothing happens.
On macOS Sierra 10.12.3
Please open Creative Cloud App and sign out from it following Sign in and sign out to activate or deactivate Creative Cloud apps . Then restart your computer and sign back in and let us know if that helps.