Close the Creative Cloud desktop app, open the File Explorer, and enter this file path in the top address bar: C:\Users\[username]\AppData\Local\Adobe\OOBE.
Learn how to resolve the black screen issue when signing in to the Creative Cloud desktop app on Windows.
System issues cause black screen
When you sign in, the Adobe Creative Cloud desktop app shows a black screen. This can happen for several reasons, including problematic apps, out-of-date drivers, or malware. To resolve this issue, delete the opm.db file and open the Creative Cloud desktop app in 256 colors.
Right-click the file named opm.db and select Delete.
In the address bar of File Explorer, enter C:\Program Files (x86)\Adobe\Adobe Creative Cloud\ACC\ and press Enter, and then right-click Creative Cloud.exe.
Select Properties > Compatibility, and in the Settings section, check Reduce colour mode and select 8-bit (256) colour from the drop-down menu.
Select Apply and close the Properties window, and then open the Creative Cloud desktop app.
Close the Creative Cloud desktop app, and then right-click the Creative cloud.exe file again and select Properties > Compatibility.
Uncheck Reduce colour mode and select Apply; then close the Properties window.
Open the Creative Cloud desktop app. If you're still getting a black screen, start your computer in Safe mode with networking for your operating system:
Once done, open the Creative Cloud desktop app and sign in with your Adobe ID and password. If you don't get a black screen, the issue is resolved. You can now restart your device in normal mode and use your apps.