Trouble importing Avast security certificate into Outlook

General Topics
1

I am using Windows 10 and Office 365 and I get a security certificate error every time I open Outlook. I have exported the Avast certificate and followed instructions on how to import it to Outlook but Outlook can’t find the certificate. Help Please.

2

Hello edgar83,
Witch instructions did you followed to import it to Outlook ?

Does it look like :

  • Start / Run
    - Type:
    C:\ProgramData\AVAST Software\Avast\wscert.der

    - A certificate window should open. Similar to the one attached.
- Click Install Certificate
- Choose: Store location: Local machine
- Choose: Place all certificates into the following store
- Click browse and navigate to "Trusted Root Certification Authorities"

I have the same problem, and i’m looking for fix it :slight_smile:

3

After a fresh start of Windows 10 and re-install office 365, I get the same internet security warnings about certificates. Did anyone find a solution yet?

4

@grandpa2
Yes, I change my Avast for another software.

5

Repair Avast:

  1. Control Panel → Add/Remove programs → Avast
  2. Click on ‘Repair’.
  3. Follow instructions.
  4. Reboot.
6

After many hours spent on identifying the problem, I discovered this was not Avast’s issue but rather Outlook 2016’s. When I attempted to add an email account from within Outlook 2016 program and manually fill in my relevant server settings, Outlook would automatically revert to “default” settings upon restart.
Instead I configured the server settings using control Panel > user accounts > Mail (Microsoft Outlook 2016) > email accounts.

No more “default server settings” or “Internet Security warning” upon restart.

7

Thanks for the update. Let’s hope it also helps someone else with a similar problem. :slight_smile: