Wauw en besværlig forklaring.
Jeg formatere min usb nøgle med diskpart. og der skal man kun windows source filerne fra DVD. Diskpart er tilgænglig på både vista og 7.
Følgende er taget fra min Microsoft Press Book 70-680 exam
1. Connect the USB storage device to a computer running Windows 7 or Windows Vista.
Ensure that the storage device has no data stored on it that you want to keep (or that
you have moved such data to another storage device) because this procedure removes
all existing data.
2. Open an elevated command prompt and type
diskpart.
3. At the DISKPART> prompt, type
list disk. Identify which disk connected to the
computer
represents the USB storage device.
4. At the DISKPART> prompt, type
select disk X where X is the number of the disk that
you have identified as the USB storage device.
5. At the DISKPART> prompt, type
clean. When the disk is clean, type
create partition
primary.
6. At the DISKPART> prompt, type
format fs=fat32 quick. When the format is
completed
type
active and then
exit.
7. After you have completed these steps, copy all the files located on the Windows 7
installation DVD to the USB storage device.
8. Configure the BIOS computer on which you want to install Windows 7 to boot from
the USB storage device. Attach the USB storage device and then reboot the computer
to start installation.