Cannot Open!

Sorry to hear about your difficulties. Can you provide more details around the issue such as:

• What operating system are you using? (Catalina 10.15, Mojave 10.14, Win 10, etc.)
• Does the slash screen appear?
• What model of computer is the issue occurring on? (2017 iMac, MS Surface Pro 4,etc.)
• Do the 2019 products launch on the system?
• What troubleshooting have you tried already? (I know some have provided this already)

For initial troubleshooting I'd suggest trying these:

• Recreate the preferences for the application

Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (Mac OS) when launching the Adobe product.
You should be prompted to delete the current settings. The new preferences files are created the next time you launch.

Note: Using the keyboard shortcut, preference files for custom shortcuts, workspaces, and color settings will also be reset to default.

• Create a new user account with admin rights, attempt launching the products in from the newly created user account

Win - https://support.microsoft.com/en-us/help/4026923/windows-10-create-a-local-user-or-administrator-account
Mac - http://osxdaily.com/2017/07/17/how-create-new-admin-account-mac/

I'd start there. Please get back with more info.

Thanks,

- Dave

Let's start with some specifics.

• Is this an Individual, Team or Enterprise account?
• Which operating system do you have?
• Which application & version # are you unable to launch?
• Does your computer meet the current system requirements to run the latest CC apps? See link below.
  https://helpx.adobe.com/creative-cloud/system-requirements.html

I have been having the same problem for two days.   I've tried the uninstall/reinstall,  uninstall/remove creatve cloud/reboot/ reinstall creative cloud/reinstall apps  but PP, AE Media Encode and CA still will not load.  Fisrt time I try they display the splashscreen, show items loading and then die.  Works on my Macbook Pro but not my iMac.   2019 versions all work.