As you can see in the screenshot, because my machine is running XP, Upgrade Advisor is recommending backing up all of the data on it, as it will require a clean install of Windows 7.
正如你在截图中看到的，由于我的机器运行的是xp，升级助手推荐我在xp中备份所有的数据，同样它也要求一个Windows7的全新安装。
As you can see in the screenshot, because my machine is running XP, Upgrade Advisor is recommending backing up all of the data on it, as it will require a clean install of Windows 7.
正如你在截图中看到的，由于我的机器运行的是xp，升级助手推荐我在xp中备份所有的数据，同样它也要求一个Windows7的全新安装。
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