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I have a copy of Acrobat Standard DC (2015) purchased with my Dell computer in December. When I started up this morning, I got a message "Error 28000: Installation of Acrobat Licensing Module has failed." I went into Arobat, which said "Installation Problem - IMSLib not found". I also got a message "Adobe Application Manager, required to verify your license, is missing or damaged. Please download a copy of AAM from www.adobe.com/go/applicationmanager".
And the update failed (error 28000 - and directed me to rollback options).
That link takes me to CC desktop, and I tried installing that program, which resulted in a "failed to insatll - error code 50" message.
I tried installing the latest update from inside Adobe, but got "
What next? I tried renaming the OOBE folder in program files (x86)/common files/adobe but it says a file is in use (everything is closed and I shut down any adobe background tasks I could find (one by one)).