

This mode is known to cause issues so we will disable it and check if this changes anything. This means that the application will launch the PDF in a confined environment where it doesn’t have access to the outside computer architecture hence providing more security. To provide more security for users using Adobe reader, the company introduced ‘protected mode’ a while ago which is designed to launch the PDF file in a sandbox environment. Also, make sure that you are logged in as an administrator. If you are trying to open a broken one or one which is malicious, the reader might not work. With the growing security architecture in Windows, this is very common and usually becomes a necessity after a Windows Update.īefore you start with the solutions, make sure that you are trying to open a valid PDF file.


This is very common and is usually fixed through reinstallation and deleting the residue files. Corrupted Installation: There are some cases where the installation of Adobe reader has become corrupt.
