Fresh install W8 -> 8.1 now HTTP data is blocked???

[zazou]

I've just set up Windows 8 on a new SSD I bought for my old laptop, everything was working fine apart from reluctance to accepting the licence key.
I then upgraded to Windows 8.1 and now none of the browsers work but I can download Windows Updates and ping google.com successfully via PowerShell.
I have disabled Windows Firewall and HMA is turned off. Neither MalwareBytes nor Windows Defender have identified any issues.

What could I do to investigate where the blockage is and what is stopping (what seems to be) http traffic?

[Scruff]

Download the official version from Microsoft and reinstall?

[zazou]

Download the official version from Microsoft and reinstall?

This is the proper version...

[sal]

Did you try different internet connection?

[zazou]

Did you try different internet connection?

I'm looking for my USB WiFi thingie to do exactly that.

What's really strange is that traffic that doesn't go via HTTP is fine, Windows updates, me browsing my home network etc.

[Scruff]

Do a fresh install?

[zazou]

Do a fresh install?

Again!!!
Might be the only way or just run Server 2012 trial for another year...

Tried tethering to my mobile, all looked fine but no browser activity, same goes for hooking it to the router via network cable.

[Scruff]

I meant do the fresh install using 8.1 not an upgrade from 8?

[vetran]

Not musch experience on win 8, but on win 7 I would try:

turn firewall off and try ?

turn off av & browsing proxies.

make sure I turn them all back on when I'm done (for the pedants).

make sure the network location was correct

do a ping & nslookup to check dns.

[Uncle Albert]

Call MS. If Win 8 refused the key they can reactivate it for you. You might have to go back to the Win 8 install though and then do the 8.1 update.