ok you win..
兩小時restart window 7，真是令人覺得無聊的做法。

The e-mail warned users that the beta version of Windows 7 would expire on August 1 and suggested that users upgrade to “non-expired” copies, like Windows 7 RC or Windows Vista. Bi-hourly shutdowns of the beta version, however, will begin on July 1, not June 1.