First, you have to make your usb bootable. >>>>You screw this up, you will be formatting YOUR hd and not the usb....<< 1. Open CMD with admin privileges. type: diskpart list disk this will list your current drives, note the size of each drive. i have a 298g and a 7684MB option.. the second being my flash .Next, Type; select disk 1 clean create partition primary select partition 1 (or which you one you want to put your windows 7 on) active format fs=NTFS >>Coffee Break<< assign exit2. Insert the Windows 7 bootable .iso disk, you should have made change the directory to where you windows 7 disk is; Mine was E:\, While my Usb was H:\ type; e:\ (or your dvd drive leter) cd e:\boot bootsect /nt60 h: (h: being your usb drive)Now all you do now is copy the entire windows 7 cd over to your usb drive and hoo-lah. windows 7... on a stick. Few Notes: 1.Yes, after writing this i realized i could have just mounted the .iso virtually and saved myself a nice dvd, but it was burned , so i used it. 2. You WILL NOT be able to access your C: drive as you do not have "Permissions" to do so, even in admin mode. now this is going to happen even if you install it on an extended partition, the only way to go around this is to just 'upgrade' your windows to 7 and hope its doesnt screw up.Enjoy.