There are 3 methods to install windows 7 via USB (actually you can install any OS via USB with these methods). But the method I’ll share is just one of them. I’ll share the manual method that does not need any additional software. What you need is only Windows 7 DVD.
- Plug your USB flashdisk into usb port
- Go to command prompt (Win+R, then input “cmd”, enter)
- Write diskpart , then ENTER
- Write list disk , then ENTER. From the disk list, find your USB flashdisk. For example if your USB in disk 1, then in the next command you will use this disk (disk 1).
- Write select disk 1 , then ENTER. You use disk 1, if and only if your USB in disk 1. If your USB in disk 2, then write select disk 2. And so on. Warning : do not input the wrong disk, or other disk will be lost! (wrong disk will be formatted).
- Write clean , then ENTER
- Write create partition primary , then ENTER
- Write select partition 1 , then ENTER
- Write active , then ENTER
- Write format fs=fat32 , then ENTER
- Write assign , then ENTER
- Write exit , then ENTER , you can close the command prompt.
- Put your Win7 DVD. Then copy all files in that DVD into flash disk. Remove it.
- Plug your USB into your computer that need to be installed. Boot it. Go to BIOS then set your computer to boot via flash disk.
I use this method to install Win 7 into netbook ASUS eee. So that it can work even without DVD reader. To go into BIOS in ASUS eee, you need to click F2, while the ASUS logo appear (you should click F2 quickly, because it’s displayed in only 1-3 seconds).
If you successfully enter the windows 7 setup, then your steps above is right. The rest, just install your win 7 as you like.
NB. It’s just a documentation for my self, I get the idea from this post.