筆電重灌, driver安裝及來源問題

Drivers Installation Order (Windows Vista) for Tecra A6 / Satellite M100
Microsoft .NET Framework
Intel(R) Chipset Software Installation Utility (included with OS)
Intel LAN Driver - 10/100 - (included with OS)
Intel LAN Driver - Gigabit - (included with OS)

上面是Toshiba網站提供的文件,其中有三樣說 包含在OS裡面...
也就是說OS裝好就已經跟著裝了嗎? 還是....? 有需要另外下載嗎?
因為現在是先用virtual machine 裝的....可能有些跟真實電腦不相同吧!

謝謝