running external hd os

May 11, 2012 at 10:53:07
Specs: Windows 7
How do I run the OS from an external SATA hard drive? would I just have to mount it in virutal box?

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#1
May 12, 2012 at 10:12:14
Kind of a vague question.

Some external sata's are really the same as an internal drive and could be used to install the OS.

A virtual machine is a software that emulates a real system. It uses a single or group of files to act as a virtual hard drive. Those files could exist on any location that the virtual machine can access.

Hang up and live.


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#2
May 12, 2012 at 10:52:35
You can't boot the computer from it, as in, you can't load an existing operating system installation of Windows 2000 or higher Windows operating system that is installed on an external hard drive due to Microsoft not allowing that.
You merely get a blue screen error message.

Even if you could do that, or if you removed the hard drive from the external enclosure and connected it internally to the computer, if the mboard's hardware of the computer you have it connected to is more than a little different from the mboard that was present when Windows was installed on that hard drive, Windows 2000 or higher probably won't load all the way in any case.


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#3
May 12, 2012 at 17:04:07
couldn't i just have it plugged in at boot, and then select that as the boot up device?

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#4
May 12, 2012 at 19:27:20
Depends on how the system views the drive.

Hang up and live.


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#5
May 13, 2012 at 08:46:38
"couldn't i just have it plugged in at boot, and then select that as the boot up device?"

You can set the bios Boot Order or similar setting to boot the computer from the USB connected drive - it may already be set that way - but if it has an existing operating system installation of Windows 2000 or higher Windows operating system on it, all you'll get is a blue screen error message.
.....

How I found out about that....

I have a hard drive that was originally in a laptop a friend owned. It has an XP Home installation on it, and it's an IDE drive.
I bought a larger IDE hard drive for her, installed it in an external enclosure, and used a program in Windows that was installed on the orginal drive to clone the contents of the entitre original drive to the larger drive, then I removed the larger drive and installed it in the laptop. The larger hard drive loaded the Windows installation fine

Later on, I installed the original drive which still had all of the same data on it in the same external drive enclosure and tried to boot the computer from it.
All I got was a blue screen error message.

I looked up my situation on the web and found that's exactly what happens when you try to load an existing Windows 2000 or higher Windows operating system installation from an external hard drive, due to Microsoft does not allow that.
The blue screen error message is generated by the Windows installation on the hard drive.



It's the same situation whether the external hard drive enclosure is connected to the computer via a USB, firewire, or eSATA connection, and whether the hard drive inside the enclosure is SCSI, IDE, or SATA.


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