A12E1 error installing Creative Cloud products | Creative Cloud

Windows

1. Open the Task Manager (Press Ctrl+Shift+Esc).
2. Click the Processes tab, check for the following processes:
   • AAM Updates Notifier.exe
   • AAM Registration Notifier.exe
     
3. Highlight any that are found, and click End Process.
4. Attempt the installation again.

macOS

1. Open the Activity Monitor (Applications > Utilities).
2. Check for the following processes:
   • AAM Updates Notifier 
   • AAM Registration Notifier
     
3. Highlight any that are found. Click the Force a Process to Quit button, and choose Quit.
4. Attempt the installation again.
   

This step closes down potential third-party conflicting processes which are not listed in Solution 1.

Windows

1. Select Start > Control Panel.
2. Double-click Programs and Features.
3. Select Adobe Creative Cloud and click Uninstall.
4. Follow the onscreen instructions.
5. Use the Creative Cloud desktop app to download and install the application.
6. Attempt the process again.

macOS

1. Go to Applications > Utilities > Adobe Installers.
2. Run the Adobe Creative Cloud installer to uninstall.
3. Follow the onscreen instructions.
4. Use the Creative Cloud desktop app to download and install the application.
5. Attempt the process again.

Windows

Note: These instructions include navigating to hidden folders. Review these instructions to access them: Show hidden files, folders, file extensions.

Note: The folder locations below are for 32-bit Windows. On a 64-bit OS, use "Program Files (x86)" instead of "Program Files".

1. Choose Start > Control Panel.
2. Double-click Programs and Features, select Adobe Creative Cloud, and click Uninstall.
3. Follow the onscreen instructions.
4. Follow the instructions after clicking the Adobe Creative Cloud Cleaner Tool link to remove the Creative Cloud desktop app.
5. Verify that the following folders have been removed:
   • C:\Program Files\Adobe\Adobe Creative Cloud
   • C:\Program Files\Common Files\Adobe\AAMUpdateInventory
   • C:\Program Files\Common Files\Adobe\AdobeApplicationManager
     
   • C:\Program Files\Common Files\Adobe\OOBE
     
   • C:\ProgramData\Adobe\AAMUpdater
   • C:\Users\[Your User Name]\AppData\Local\Adobe\AAMUpdater
   • C:\Users\[Your User Name]\AppData\Local\Adobe\OOBE
     
6. To download and install, click the Creative Cloud desktop app.

macOS

Note: The User Library folder is hidden on macOS 10.7 and later. Review these instructions to access it: Access hidden user library files.

1. Go to Applications > Utilities > Adobe Installers.
2. Double-click Adobe Creative Cloud.
3. Follow the onscreen instructions.
4. Follow the instructions after clicking the Adobe Creative Cloud Cleaner Tool link to remove the Creative Cloud desktop app.
5. Verify that the following folders have been removed: 
   • Applications/Utilities/Adobe Creative Cloud
   • Applications/Utilities/Adobe Application Manager
   • Library/Application Support/Adobe/AAMUpdater
     
   • Library/Application Support/Adobe/AAMUpdateInventory
     
   • Library/Application Support/Adobe/OOBE
     
   • Users/[Your User Name]/Library/Application Support/Adobe/AAMUpdater
   • Users/[Your User Name]/Library/Application Support/Adobe/AAMUpdateInventory
     
   • Users/[Your User Name]/Library/Application Support/Adobe/OOBE
     
6. To download and install, click the Creative Cloud desktop app.

This error occurs when certificates on the system are not up to date or cannot be verified. 

Use the Windows Certificate Manager (certmgr.msc) to check if the "VeriSign Class 3 Public Primary Certificate Authority – G5" certificate exists in "Trusted Root Certificate Authorities." For more information about the Certificate Manager, see View or manage your certificates.

If it is missing, install this certificate manually.