为什么我的电脑上网易上不了？一开网页就是卡巴斯基安全套装？

这是你的域名解析服务所致，hosts文件所致，用搜索命令搜索这个文件，用记事本打开，复制以下内容到覆盖原内容，保存退出，重启。
# 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:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host

127.0.0.1 localhost
或者去网上下个360，上面有修复工具。