This is the latest NXE which was released on Xbox Live last month.
You can download this and place on a DVD (or even USB drive works)
and install the NXE without connecting to Xbox Live. Great for helping
friends who arent on Xbox Live experience the NXE or updating your
own consoles which you don't connect to Live for any reason.
To create a DVD or CD:
1. Click here to begin downloading the update folder. Save it as "$SystemUpdate_Fall08.zip"
anywhere on your computer.
2. Place a blank disc in your burner.
From Windows Explorer, select Open Writable CD Folder Using Windows Explorer
or open the CD drive icon.
3. Open (double click) the zipped $SystemUpdate_ Fall08.zip folder and drag the
contents of the zipped folder to the root of the CD Folder. If the CD write
window doesn't open by default, drag and drop the folder onto the CD/DVD RW drive.
Other Solution :
Burn the Folder "$SystemUpdate" With Nero As DATA DVD/CD/RW.
Put it In Your Xbox360 And Reboot It, The Xbox360 Ask you To Update.