E-Notebook Enterprise: Errors during Sign and Close caused by Protected Mode in Adobe applications

Details:

The following errors may appear when performing Sign&Close in E-Notebook:

Initializing the sign version dialogue failed:

Sorry, The server threw an exception. (Exception from HRESULT: 0x80010105 (RPC_E_SERVERFAULT))

or

Error Initializing Field PDF:
The server threw an exception. (Exception from HRESULT: 0x80010105 (RPC_E_SERVERFAULT))

or

"Sorry, Error saving new PDF with signature page: C:\Users\YourUserName\AppData\Local\Temp\E-Notebook\Temp_xx.pdf"

Root cause:

Please check Protected Mode security settings in Adobe applications.
The issue may start after an Adobe update, which sets "Enable Protected Mode at startup" on by default.

Solution:

This issue can be resolved by disabling the enhanced security.

1. In Adobe Acrobat DC, navigate to Edit > Preferences > Security (Enhanced).
2. Un-check the Enable Protected Mode at startup check box.
3. Click Yes in the confirmation message box.
4. Click OK.

Reference:

E-Notebook Administrator's Guide > Troubleshooting > Error while Sign and Close an Experiment.