Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Unable to boot from a external HDD to install windows 7

01 Jun 2013   #1
Question2

win 7 64 bit
 
 
Unable to boot from a external HDD to install windows 7

To cut a long story short, i followed the steps here : http://www.intowindows.com/how-to-install-windows-7vist... so that i can install win 7 64 bit off my external HDD.

When i select to boot from the external drive however, i just get a blinking cursor for a second or two and then windows starts up as normal.

Anyone have any ideas what to do?

The DVD/USB tool does not detect my external drives so i am using the command prompt method instead.

ISO is the official win 7 ultimate 64 bit downloaded from the microsoft site.

I was able to boot from and install windows from this external drive before but it just mysteriously stopped working.


My System SpecsSystem Spec
.
01 Jun 2013   #2
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Try one of this tutorials.

For Legacy BIOS:
USB Windows 7 Installation Key Drive - Create

for UEFI/BIOS firmware:
UEFI Bootable USB Flash Drive - Create in Windows
My System SpecsSystem Spec
01 Jun 2013   #3
Question2

win 7 64 bit
 
 

Unfortunately the tutorial you linked is exatly the same as the guide i linked (which means i already did all the same steps).

Not sure what the UEFI thing is...how do i check i have it? The BIOS interface looks the same as a standard BIOS one.

Edit ; Nevermind, i just checked, i'm using a BIOS called american megatrends, pretty sure its legacy BIOS.
My System SpecsSystem Spec
.

01 Jun 2013   #4
gregrocker
Microsoft MVP

 

An external HDD is detected differently than a USB flash stick so is much harder to format as a bootable installer. I would not waste my time as it is nearly impossible with no known method that works for all models. Use flash stick or DVD.
My System SpecsSystem Spec
01 Jun 2013   #5
Question2

win 7 64 bit
 
 

But i was able to boot using this same hard drive before. I dont know why its not working now.

I also just noticed some very odd behaviour with this installation of windows.

-All the files that i download instantly dissapear once the download finishes

-I cannot access microsoft security essentials or bit defender. The former complains that i do not have permission, the latter tells me that i may not have permission.

Im thinking i might have gotten hit with some kind of virus....

And the DVD drive is not showing up in windows explorer....
My System SpecsSystem Spec
01 Jun 2013   #6
gregrocker
Microsoft MVP

 

Back up any files to quarantine and don't reimport them later until they've been scanned with Malwarebytes and MSE.

Boot Win7 installer from Step 1 to write to stick or burn to DVD using tool in Step 2 of Clean Reinstall - Factory OEM Windows 7.

Delete all partitions during booted Custom Install.
My System SpecsSystem Spec
01 Jun 2013   #7
Question2

win 7 64 bit
 
 

Problem being i can't boot the windows installer at all. I dont have any DVDs or USB sticks to write it to.
My System SpecsSystem Spec
01 Jun 2013   #8
gregrocker
Microsoft MVP

 

Use some of the hundreds of dollars saved on a repair bill by coming here for help to buy a $5 flash stick or $2 pack of DVD's on the wall rack at Walgreens.
My System SpecsSystem Spec
01 Jun 2013   #9
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote:
I cannot access microsoft security essentials or bit defender.
If you run MSE and BitDefender at the same time, you should expect problems. You have to get rid of one of those.

And forget installing from an external HDD. Get a pack of DVDs.
My System SpecsSystem Spec
Reply

 Unable to boot from a external HDD to install windows 7




Thread Tools




Similar help and support threads
Thread Forum
Unable to boot into BIOS when external HDD connected
Hi all I am having a weird issue, as the title says, I am unable to boot into BIOS when I have the external HDD connected via USB 3.0. when i want to start it up and boot into windows it starts to load the windows installer which you would find like on a win 7 install disk but then stops. ...
Hardware & Devices
Unable to Install Windows 10 - Couldnt find Boot Disk
Hey guys! I'm not sure if this is the correct forum for this, but I'm currently trying out Windows 10, but I'm getting an error which I believe is due to my previous dual-boot consisting of Windows 7 + Antergos w/ Grub. (My friend installed this for me, so I'm not very familiar with this stuff....
Installation & Setup
Unable to boot/repair/install windows
Hi, I have a problem with my laptop. I cannot boot Windows. While powering on I am prompted that I can run windows normally or repair it. No matter what I choose I am always stuck on black screen with only muse cursor. I have tried booting the safe mode, going back to last good configuration,...
Installation & Setup
BSOD HDD Failed - Install Windows 7 on external hard drive from boot
Hello everyone, I am new to the forums and not sure where the best place to ask this question is, any help would be appreciated, even if you refer me to somewhere else. I have a Dell Inspiron 1545 (2.5 years old). All my data is backed up so I have no concerns about recoverying data. First,...
General Discussion
Windows 7 cannot install, unable to boot to XP ERROR LOADING OS -help
XP on one hard drive, and trying to install Win7 on brand new 500gb drive. Loaded 7Ultimate and got to Install screen. Selected drive and made new partition. Clicked next. Received error: I don't know how to get to the logs, but what does this message mean? I have tried almost 6 or 7...
Installation & Setup


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 15:37.
Twitter Facebook Google+