Hi guys,
it seems we for some reason fail to insert our trusted certificate root on your PC. I've already posted guidelines how to check it and reinsert manually. Please use search.
Could you, please, also send us screenshots of the certificate?
Click the paddle lock icon, choose view certificates, select Certification Path and post a screenshots of the path, one with the leaf (bing.com certificate) and one withthe root (Avast Web/Mail Shield root certificate) selected.
Thanks.
Lukas.