After disabling the GpgOL plugin, you will need to save encrypted messages as files on your hard drive in order to view them later on.
1. Select the encrypted message.
2. Right-click the file ending in “.asc”, then click “Save As.”
3. Click on “Desktop” to choose where you will save the file. Type “encrypted” for the filename, and click “Save.”
For certain older PGP messages (PGP Inline), you will not see files to download. These steps may have to be altered for those messages.
For instructions on reading the saved file, see Using the Command Line to Decrypt a Message on Windows.
These notes are based on Outlook 2016 and Windows 10.