Steps to make USB Drive Bootable for SCCM

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1) Attach the USB Flash Drive to a Windows Vista/7
2) As Administrator: Open a command window and run 'DISKPART’
3) At the DISKPART> prompt, type 'List disk'
4) Determine which disk number corresponds to the USB flash drive (make sure you correctly make this determination!), then at the DISKPART> prompt, type 'Select
disk <x>' where <x> is the disk number that the USB flash drive corresponds to
5) At the DISKPART> prompt, type 'Clean'
WARNING!: This will wipe all the contents from the drive you selected in step 4 so make sure that the correct drive is selected and that there is nothing on the drive that is needed.
6) At the DISKPART> prompt, type 'List Partition'. If there are no partitions,
move on to step 7. If there is a partition, at the DISKPART> prompt, type 'Select
Partition 1' then type 'Clean'
7) At the DISKPART> prompt, type 'Create Partition Primary'. If you receive an
error at this stage regarding not being able to create a partition, the USB Flash
Drive is not capable of being made bootable and will not work as an SCCM 2007
bootable Task Sequence Media. Please restart the process using a different USB
Flash Drive.
8) At the DISKPART> prompt, type 'Select Partition 1'
9) At the DISKPART> prompt, type 'Format FS=FAT32 QUICK'
10) At the DISKPART> prompt, type 'Active'
11) At the DISKPART> prompt, type 'Assign'
12) At the DISKPART> prompt, type 'Exit'