Photoshop desktop app is not working

Unfortunately you haven't given us any information about your system. Therefore, all proposed solutions are a look into the crystal ball.

Please describe the steps you’re doing, so we can try to reproduce.

Do you get an error message? If yes, please post the message word-by-word.

What has been done or changed on your system before the error occur?

Try to manually removing the preferences files. This is the most complete method for restoring to the default state. The manual method ensures all preferences which may be causing a problem and prevents Photoshop form loading.

Please follow the steps below:

1. Quit Photoshop.
2. Navigate to Photoshop's Preferences folder.
   MacOS: …Users/[user name]/Library/Preferences/Adobe Photoshop [version] Settings
   Windows: …Users/[user name]/AppData/Roaming/Adobe/Adobe Photoshop [version]/Adobe Photoshop [version] Settings
    
   Note: The User Library folder is hidden by default. To access the content in the hidden folders see here:
   MacOS: Access hidden macOS library files
   Windows: Show hidden files, folders, and filename extensions in Windows
    
3. Drag the entire Adobe Photoshop [Version] Settings folder to a safe place to a backup your settings
4. Open Photoshop.

 New preferences files with the default settings will be created automatically.

We’re also need more informations about your system. Please provide a copy of your 'System Info' if it’s possible. This can be get from the Photoshop menu item Help > System Info. There's a copy button in the System Info dialog. Press this button and paste the info into a text file and attach it to your next forum post.