

When you select your external hard drive make SURE it?s your external hard drive. This will show you all the hard drives / partitions on your system. Or just open up the run box (Windows key +R) and type compmgmt.msc and press enter. Also create a 20 gig Tools partition.įor everyone else follow these instructions.įirst open up ?Computer Management? You can find it in the control panel under Administrative tools / Computer management. Make each install partition 4 gigs using the NTFS file system.

If you already know how to do this, then create a partition for each Windows Install you wish to put on the drive. Next you have to partition your USB Hard drive. I recommend a USB hard drive instead of a large thumb drive because the transfer rates will generally be a lot better. The first thing you need to do is get yourself an spare external hard drive. So for this guide we will only be focusing on Windows Vista/7/8. I was able to install XP off a usb stick once upon a time, but the speed was so slow, a CD would have been faster. The instructions in this guide pertain to Windows Vista, Windows 7 and Windows 8 only. *Warning, content Beyond this point may make you wet yourself.* The first one that came to mind was EasyBCD. I knew I?d probably have to use some kind of Boot loader software. Then I thought, wouldn?t it be nice if I had 1 hard drive that when booted would give me an option as to which Operating system I wanted to install? So I would always revert back to using individual cd / dvds. I?ve installed all of those operating systems off an usb key at one time or another, but I would either loose the sticks or the labels would rub off and I would never be sure which usb key had which OS on it. Then I thought, hmmm I wonder if it would be possible to put all the setup files for Vista 32/64 and 7 32/64 all onto the same external hard drive and install windows from that. I wanted to put it to use but I couldn?t really think of anything to use it for. I recently had a spare 250 gig 2.5 external hard drive lying around my shop.
