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Error A12E1 when trying to install/upgrade Adobe Creative Cloud Packager

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I was getting error A12E1 as soon as the download would finish and the app would try to start installing.

While I’m still not sure why it was failing, the solution was pretty simple:

  1. Open C:\Users\username\AppData\Local
  2. Copy the “CreativeCloudPackager.zip” file from that file to any other location on my computer (I used C:\Temp, but just get it out of that folder)
  3. Extract the .zip file
  4. Run the extracted Setup.exe file

While I can’t guarantee that it will work for you, it did work for me and since I couldn’t find any other instructions like this online, I thought I’d pass it on.