Can you tell us if this article solves the problem:helpx.adobe.com/acrobat/kb/bla…In short, it suggests the following: Solution 1: We have this problem for many users and we just found it strange that if you have a file that gives the error, just open the Adobe Reader program before double-clicking on it, then it would open well. Also, the protection mode fix wouldn`t work in our case because it prevents users from opening a PDF file from a file share. You must pay any price incurred by PaperCut for any new cost or other loss of fees, plus PaperCut`s administrative price for processing a fee failure (except where a refund of fees is required by law) ;);. In all circumstances, this regulation may be governed by and construed by the legal guidelines of the Commonwealth of Massachusetts, USA (with the exception of its ideas to combat legal guidelines and the whiteboost.com model for end-user license agreements). The Adobe Acrobat Reader DC application is installed on the Mac and when I launch this application, nothing seems to accept a license. I can`t open PDF files. I get the following statement: “Before proceeding, you must first start Adobe Acrobat and accept the End User License Agreement.” Can you tell me what that means? I would really like to read some important documents. Thank you very much! Leah “Enable Protected Mode” is a new feature in Reader X that allows a “sandbox” security layer in Reader. I have Creative Cloud and my Adobe Acrobat is licensed and active. What`s there? Using Adobe Reader on Safari OSX 10.9.2. Error message “Before you continue, you must first start Adobe Acrobat and accept the End User License Agreement.

UPDATE: It looks like Alex is right. I removed the bProtectedMode registry entry from HKLMSoftwarePoliciesadobe10.0featureLockdown and was able to open all the files without the message. .