Data execution prevention

AVG Protection
1
Every time I run a system scan, AVG asks me if I want to turn on "Data Execution Prevention."  What is this feature, and how can I turn it off if I don't like it?
5

And, I have a follow-on problem for you.  After re-installing AVG, I am seeing a new error message when I launch the Thunderbird email app:
Non-overridable TLS error occurred.
Handshake error or probably the TLS version or certificate used by server imap.sonic.net is
incompatible.

I am suddenly unable to send or receive email using Thunderbird.  Any advice on how to fix this would be appreciated.  I can assure you that this problem never occurred until I re-installed AVG today.

Ben

3

Thank you for updating the status, Ben.

We're sorry for the inconvenience caused.
To further investigate this issue and help you resolve it, we've sent you an email with detailed instructions to contact our additional support.
Please check your inbox/spam folders to find the email and use it to contact them at your convenience.

11

Hello Brewman,
Thank you for reaching AVG Community Support.
We regret to hear the inconvenience you had with getting the same error. To help you in this case, please create a separate AVG community post by clicking the link below and post your questions in your own post, so we will check with your AVG account and help you accordingly.
https://support.avg.com/support_ask
Thank you for your understanding

10

Hi Ben,
Thank you for contacting AVG Community Forum. I see you are facing issues with Data Execution Prevention while running a scan. I am sorry for the inconvenience. Could you please share us the screenshot of the page (https://support.avg.com/SupportArticleView?urlname=AVG-Create-screenshot) which shows the pop-up while running a scan?
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. Thanks in advance.

6

Hi Ben,
Thank you for contacting AVG Community Forum. I see you are facing issues with Data Execution Prevention while running a scan. I am sorry for the inconvenience. Could you please share us the screenshot of the page (https://support.avg.com/SupportArticleView?urlname=AVG-Create-screenshot) which shows the pop-up while running a scan?
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. Thanks in advance.

8

This isn't the experience we want you to have, Ben.
Since, it seems to be unusual, our colleague has suggested to reinstall AVG once to ensure that all the services are running fine. 
Thank you in advance!

9

Okay, I'm sorry to keep submitting follow-up comments, but I think this will be of interest.  I am able to temporarily suppress the problem described in my previous post, by temporarily disabling the email shield in AVG.  With email shield disabled, I am able to send and receive new messages, and I don't get the TLS error described above.

Obviously, this is not an ideal solution, since it leaves me vulnerable to malware in email attachments.

2

Excellent explanation.  Thank you, Midhun!

Now that I know the details, I can probably live with things the way they are.  It appears that DEP is already on, and I am protected, so really I can just remind myself that this is just a nuisance message from AVG.  I'll try the uninstall and reinstall procedure when I have more time.

Thanks again.
Ben

4

All right, you shamed me into doing the re-install of AVG, which was fairly straightforward.  So far, I have not seen the nuisance warning again, but it will take a few days to be sure.  Thanks for your help.

7

User-added image

Here is the requested screen shot.