Thank you for your reply.
sfc /scannow and DISM.exe /Online /Cleanup-image /Restorehealth both done. No Use.
I honestly would like to avoid to reinstall the whole Windows 10.

Have your same problem. Please help!

After upgrade, my computer is unusable. I have the same problem as here:...

Dear Dalchina,
I already had the idea of VPN a few days ago but then it did not work. After your suggestion, I tried again and I have to say that internet works good now (at least today), browsers...

Hello everyone (and Dalchina), here I am again.
DNS jumper is indeed giving me DNS in order of quickest response speed. I tried almost all of them but none changed the situation so far. It is worth...

Dear Dalchina,
thank you for all your suggestions!
I will try and I will let you know.

Dear Dalchina,
I tried to use non-automatic DNS, specifically 8.8.8.8. and 8.8.4.4. but nothing changed. Moreover, this is a modification that is going to affect all connections because it is made...

Dear friends,
I have a problem with a specific public open hotspot so, as a first thing, I do not have access to the router settings.
The fact is that all non-browser activities (i.e. Skype) are...