If you've already downloaded and are using the beta version of Windows 7 you'll have to do a clean install. That means wiping your hard drive and starting again.

如果你已经装了Windows7be ta版，你需要格式化重新安装。

youdao

If you've already downloaded and are using the beta version of Windows 7 you'll have to do a clean install. That means wiping your hard drive and starting again.

如果你已经装了Windows7be ta版，你需要格式化重新安装。

youdao