Unblocking a blocked program

Hello Marc,

I am sorry to hear that. Please disable AVG temporarily(http://support.avg.com/SupportArticleView?urlname=How-to-use-Passive-Mode) in your computer and check if you are able to scan documents without any issue. If you are able to scan, please let me know and I will assist you further.

AVG message said a program was trying to do something with a PDF file after scanning a document. When asked if I wanted to block the program, I clicked on the block button. The program was PfuSsMon.exe. After that, when I tried to scan a document, only a blank page appeared. Usually I can send the scanned page to a folder, but now nothing is scanned. I believe the program is part of the scanning process. I want to unblock the program, but can't find where it exist in AVG. How can I find it to have it unblocked?

Marc,
Sorry to hear this. Please follow below steps to unblock PDF application from the blocked list of AVG Ransomware protection:
1. Open the AVG management console and click Internet Security.
2. Go to Menu ▸ Settings ▸ Ransomware Protection.
3. Select the Blocked/Allowed apps tab.
4. Click Block an App or Allow an App, then select that PDF application and click Open.
5. The application appears in the relevant list. Click Close to return to the main Ransomware Protection screen.
If the issue persists, please share the screenshot of error you encounter with PDF application file to assist further.
To create a screenshot, please follow this article http://avgread.me/1aZxsAV .
Thank you.

Hello Marc,

I am sorry to hear that. Please disable AVG temporarily(http://support.avg.com/SupportArticleView?urlname=How-to-use-Passive-Mode) in your computer and check if you are able to scan documents without any issue. If you are able to scan, please let me know and I will assist you further.

I too am having problems similar to this, but with word documents. I blocked thinking that I could unblock later if it turned out to be important. Now I can't save anything. I've tried the passive mode and it worked. I can now save again, but I'd very much like to be able to unblock it and reactivate AVG.

Marc, If applicable.. For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru