how can i disable HTTP 403 on my computer?

Answer 1

Here is what I have on that error.

403 Forbidden

The server understood the request, but is refusing to fulfill it. Authorization will not help and the request SHOULD NOT be repeated. If the request method was not HEAD and the server wishes to make public why the request has not been fulfilled, it SHOULD describe the reason for the refusal in the entity. If the server does not wish to make this information available to the client, the status code 404 (Not Found) can be used instead.

So it really is saying check with the webmaster of the site you are using.

Answer 2

get a good firewall. zone alarm offers a good rated free one