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Windows 7: Making just 1 USB partition bootable

29 Mar 2014   #1
medwatt

Windows 6 Ultimate x64
 
 
Making just 1 USB partition bootable

Hello,
I've been trying to create a bootable Win7 for my notebook using my 320GB external hard drive. The problem is I have other files in there too. I made a small (10GB) partition in the 320GB HD and formatted in FAT32. The problem is all the available software around that automate the Win7-USB process format the entire hard drive and not just that 10GB partition which I specified.
I wonder if there is a way to use just the 10GB partition.
Thanks


My System SpecsSystem Spec
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29 Mar 2014   #2
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Not sure I follow all of that, but I don't think Windows will boot from an external drive.
My System SpecsSystem Spec
29 Mar 2014   #3
medwatt

Windows 6 Ultimate x64
 
 

No. I meant creating a Win7 USB bootable disk. All I am asking is given that I have a large USB drive, is it possible to partition that USB drive such that I can put the Win7 installation files in that partition and keep the other partition unformatted ?
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29 Mar 2014   #4
gregrocker

 

More trouble than it's worth. I'd get a 4gb flash stick or DVD.

Windows 7 USB-DVD Download Tool
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29 Mar 2014   #5
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Quote   Quote: Originally Posted by medwatt View Post
No. I meant creating a Win7 USB bootable disk. All I am asking is given that I have a large USB drive, is it possible to partition that USB drive such that I can put the Win7 installation files in that partition and keep the other partition unformatted ?
I've never owned an external drive. I'd assume they can be partitioned and formatted like any other. And that you could then copy whatever files you wanted to that partition.

BUT, I'm not sure you could then install Windows FROM an external USB hard drive TO an internal, although I know you can from a USB flash drive. I took a quick glance at Google and couldn't find confirmation that you can install from USB external hard drive. What I saw implied you couldn't.
My System SpecsSystem Spec
29 Mar 2014   #6
medwatt

Windows 6 Ultimate x64
 
 

I've already done it before using Win2Flash using my 320GB external HD. I've already stated the problem which I'm trying to avoid. When I use Win2Flash it formats my entire 320GB external HD. Now, I have files in it. So what I'm asking is how to avoid formatting the entire external HD.
My System SpecsSystem Spec
29 Mar 2014   #7
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Have you tried Diskpart? I'm guessing it will see externals.
My System SpecsSystem Spec
29 Mar 2014   #8
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

Sure. You can use any decent partitioning program. Free Partition Manager - AOMEI Partition Assistant Standard


There is a peculiar windows limitation for usb - you can only see one partition on a usb stick. If you want to see the other one instead, you have to mark it active. ( Linux doesn't have that limitation ).

Another option for usb stick is to keep your existing partition intact, ( with all your files on it ), make sure it has the nt6 bootsector code and mbr code ( easily done with bootice ).

bootice.zip

If you have an external HD you are already using, create another partition with Aomei or bootice, then just extract the installation media onto it.

If you want to use it as a recovery partition , similar to oems , simply register it with reagentc command.


My System SpecsSystem Spec
29 Mar 2014   #9
medwatt

Windows 6 Ultimate x64
 
 

I already know how to partition a hard drive. The question I am asking here is how to put the contents of the Win7 installation disk in just one partition of an external hard drive. All the software that are available for automating the process will format the partition by default and for some reason the entire hard drive. I don't know why it does so. Thats what I am asking and how to avoid that ?
My System SpecsSystem Spec
29 Mar 2014   #10
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

How about letting your app format the whole drive and put your files on it. Then shrink the partition and make a second partition out of the "unallocated space". Most partitioning programs can shrink partitions as needed on an internal drive. Not sure if they can do that on an external.
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 Making just 1 USB partition bootable




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