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Can I install Ubuntu on USB stick without touching Windows Hard Drive and boot from USB when needed?

I believe I read you must install 'Boot' stuff on computer main HDD!

It defies the need to have it on USB then.

I am no Ubuntu expert, I am mainly a Windows user!

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Simply put yes you can. I keep a 16gb 'live usb' stick on my key chain for that very reason. The only problem that I have ran into is to boot from the USB you have to restart the computer and at some public places the is frowned on.

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OK - thanks, I was actually trying one Stick and it was only 4Gb and 12.04 wanted at least 4.4Gb! My luck - I will get a larger one tomorrow. It is useful when you are somewhere else or repairing a computer. –  mop May 20 '12 at 15:34
    
Downloading the latest stable version right now and will use Pendrivelinux - thanks –  mop May 20 '12 at 15:56
    
ok let me know how it goes –  powell4076 May 23 '12 at 18:48
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To run Ubuntu from a USB stick, the first thing you need to do is insert a USB stick with at least 2GB of free space into your PC.

  1. Download Ubuntu Desktop 12.04 LTS
  2. How to create a bootable USB stick on Windows
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Yes, I remember now - Pendrivelinux. I did check it out one or 2 years ago and forgot - thank! –  mop May 20 '12 at 15:35
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