網上有消息稱，來自微軟的內部郵件顯示Windows Vista SP1將在4月18日強制推送。

以下是部分郵件內容摘要:

安裝提示：請備份您的數據。在安裝的過程中請保證電源的供電和公司有線網絡的連接。2008年4月18日， 在Windows Update的通知里Windows Vista SP1將會變為”關鍵的”更新。所有連接到Windows Update的Windows Vista用戶都會收到”Windows Vista SP1已經下載并且已經開始安裝”的消息。

Instructions

1. As with any operating system modification, feel free to back up your data.

2. Remain connected to AC power and hard wired to the corporate network during the installation.

April 18, 2008: The Windows Vista SP1 update notice will change to ‘Critical’ in Windows Update. All Vista clients connecting to Windows Update will receive an advertisement that the Windows Vista SP1 update download and installation has been initiated.