у меня нет "ets\hosts"на диске с\

с "особистскими" привелегиями в проводнике следуем:
C:\Windows\System32\drivers\etc
в каталоге etc лежить файлик - если его нет, создать.
Содержимое вот:

#####начало_файла_hosts######################################
# Copyright (c) 1993-1999 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:
# Permit this.
#127.0.0.1 localhost
# designate 127.0.0.1 as the local host leave this line as is.
#########конец_содержимого_hosts#################################

Вариант еще:

www.tech-pro.net/how-to-check-repair-hosts-file.html
смотреть Method 2