1,清理病毒:
http://www.activevirusshield.com/antivirus/freeav/index.adp?
AOL和卡巴斯基联合推出的,自己下载,完全免费的
注意:有一个Seceruty TaskBar不要安装,会造成IE不稳定
2,清理Spyware
http://www.download.com/Ad-Aware-SE-Personal-Edition/3000-8022_4-10045910.html?part=dl-ad-aware&subj=dl&tag=top5
3,清理流氓软件和插件(360安全卫士,竟然还能解释进程和启动项)
http://www.360safe.com/
4,系统查错和维护
诺顿Win 医生
http://download.yousendit.com/47DC2E9C05873833
运行那个Windoc.exe即可