Saturday, November 8, 2008, 07:12 PM - Geek
Posted by Administrator
I spent a couple of hours on troubleshooting a Vista install from USB storage today, so I thought I'd just blog about it so I will lose less time next time :) Posted by Administrator
I recently bought a Dell Mini 9 netbook with Windows XP installed, and wanted to upgrade to Windows Vista. The Vista installation DVD obviously wouldn't fit in the optical-drive challenged netbook, so installing Microsoft's OS from USB sounded like the most pragmatic solution.
Unfortunately, Vista's installation DVD contains a large install.wim file weighing over 4Gb. Files this large won't fit on boot friendly FAT32 USB keys, therefore requiring a NTFS primary partition on the memory stick. Obtaining this partition is done as follows (on a Windows XP/Vista box):
(launch diskpart.exe)
select disk 1 (or your USB drive number, use list disk to get it)
clean
create partition primary
select partition=1
active
format fs=ntfs
assign
exit
Now that the drive is boot aware, we have to initialize its boot sector with the Windows boot manager (BOOTMGR), using the Bootsect.exe utility located in the boot directory of the Vista installation DVD. We have to tell the utility that our target drive is NTFS formatted:
bootsect.exe /nt60 f:
Since the Mini 9 only features a 16Gb SSD, trimming down Vista was almost mandatory. vLite is a free tool allowing you to do just that, by providing a relatively user-friendly UI for the Windows Automated Installation Kit to select only the Vista components you desire. I was thus able to trim down the Home Premium install to 5Gb instead of the standard 12Gb (!).
Now that the USB stick is fully bootable, just copy everything from the installation DVD (or your trimmed down install) to the root of the drive. Plug the key in the computer, boot from it and install away :)


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