win7 ubuntu

双系统安装

http://www.weste.net/2012/4-29/82173.html

重装win7，如果修复ubuntu引导

http://jingyan.baidu.com/article/72ee561aa1d123e16138df81.html

u盘安装ubuntu

http://www.ithome.com/html/soft/69582.htm

win7 

重装系统备份序列号

ubuntu 右键打开菜单

http://www.linuxidc.com/Linux/2014-04/100498.htm

http://zhidao.baidu.com/question/494140906.html

http://farlee.info/archives/mbrfix-exe-uninstall-linux-ubuntu-in-windows-xp-dos-disk-away.html

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ubutu 13下载地址

http://releases.ubuntu.com/13.04/