[ryuuu]

schau mal bitte unter

c:/windows/system32/drivers/etc

dort ist eine datei die sich "host" nennt
öffne die mal bitte mit dem editor und schau ob sie so aussieht wie im spoiler. wenn nicht kopier das aus dem spoiler und ersetz es in dem editor speicher starte rechne einmal neu und probiers nochmal

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host

localhost name resolution is handled within DNS itself.
127.0.0.1 localhost
::1 localhost