USB Drive - Boot from within Windows 8

How to Boot from a USB Drive within Windows 8 and 8.1


information   Information
This tutorial will show you how to boot from a USB drive from within Windows 8 and 8.1.

Note   Note
This is a per usage option that will not configure Windows to always boot from the USB drive.

If you have a UEFI Windows 8/8.1 installation, then you will need a bootable UEFI flash drive to be able to boot from it using the method in this tutorial.





Here's How:

1. If you have fast boot or ultra fast boot enabled in your UEFI firmware settings, then you will need to temporarily disable fast boot or ultra fast boot to be able to boot from a USB.

2. Connect a bootable USB drive to the USB port on your PC.

3. While in Windows 8 or 8.1, boot to Advanced startup using either option 1, 2, or 3 in the tutorial below.

4. After the computer restarts, click/tap on the Use a device option. (see screenshot below)
Choose_an_option.jpg

5. Click/tap on the USB drive that you want to use to boot from. The computer will now restart and boot from the selected USB drive. (see screenshot below)
Use_a_device-2.jpg



That's it,
Shawn


 

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Hey Wolfgang,

This method doesn't require having to disable Secure Boot, enable CSM, or disable Fast Boot in UEFI settings to boot from the USB. Well, at least I didn't have to on a Surface Pro 2, HP Envy laptop, or my desktop (see my specs) that all have Windows 8.1 installed with UEFI.

However, if you are not able to boot into Windows, then you'll need to use the boot order or boot menu method instead.
 
Thanks for that. Another way is to set the Change Windows To Go startup options setting to yes. It will then boot from whatever USB you have plugged in. Note I've only tried this on mbr installation of 8.1 Pro - not sure about other versions.


It is easier than changing the BIOS I think.

Capture.PNG
 
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Thank you Adam. You read my mind. I'm working on another tutorial for later just for that with a command and gpedit option as well.
 
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Hi, but when i tried this, it restarted and back to normal win although I pluged my usb? When i tried press f12 to boot menu it still back to normal win. My PC is Acer Aspire V5-571P
 
Hi Brink,

Thank for your reply. I think win 8 have lock some think. My current win 8.1 is not actived. And when i do as your link it doesn't go to bios when turn on and press f2. It still go to windows.

But when i logged in my pc, and press Shift + Restart > troubleshoot > advanced option > uefi firmware setting . It log into bios. I already enable F12 boot.

Another thing is when i choose boot from HDD in your step 3. Or when i try to safe mode, it still run into windows. So my normal way to renew win is use command prompt to select file in my hdd. But this way can't format the system (C) drive and it's leave a old file win?

Any solution?
 
Hi Brink,

Thank for your reply. I think win 8 have lock some think. My current win 8.1 is not actived. And when i do as your link it doesn't go to bios when turn on and press f2. It still go to windows.

But when i logged in my pc, and press Shift + Restart > troubleshoot > advanced option > uefi firmware setting . It log into bios. I already enable F12 boot.

Another thing is when i choose boot from HDD in your step 3. Or when i try to safe mode, it still run into windows. So my normal way to renew win is use command prompt to select file in my hdd. But this way can't format the system (C) drive and it's leave a old file win?

Any solution?


Did you create a bootable UEFI USB flash drive?

http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html

Why isn't your Windows 8.1 activated?

Are you able to reset Windows 8.1 at boot?

http://www.eightforums.com/tutorials/2302-reset-windows-8-a.html
 
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This UEFI is a handsome frog. I have still not figured out how to boot my Linux system from a flash drive. That is not an installation iso but a running system.
 
I'm created successful bootable usb by rufus.

I just reinstall my windows from Command Promp from Shift + click Restart and it's succeed. It now can format the system hard drive. Maybe i remember wrongly.:)

But i still hope we can slove this problem for other user.

I hope UEFI is good but we can't ghost it :( . What the hell when you paid a lot of money for better thing and use ghost and backup whole computer. @@
 
Great news SevenT. :party:

We'll hopefully help solve this for each user one by one.
 
I hope UEFI is good but we can't ghost it . What the hell when you paid a lot of money for better thing and use ghost and backup whole computer. @@
If you mean making an image by "ghost it", then that is possible with many programs like Macrium, AOMEI or others. But the easiest is with this command:

wbadmin start backup -backupTarget:X: -include:C: -AllCritical -quiet

You have to replace "X" with the volume letter of your backup device.

Recovery is thru F9 or Restart when holding the Shift key down or your installation/recovery disc. Then you drill down this chain:

• Language setting
• Troubleshoot
• Advanced Options
• System Image Recovery
 
I hope UEFI is good but we can't ghost it . What the hell when you paid a lot of money for better thing and use ghost and backup whole computer. @@
If you mean making an image by "ghost it", then that is possible with many programs like Macrium, AOMEI or others. But the easiest is with this command:

wbadmin start backup -backupTarget:X: -include:C: -AllCritical -quiet

You have to replace "X" with the volume letter of your backup device.

Recovery is thru F9 or Restart when holding the Shift key down or your installation/recovery disc. Then you drill down this chain:

• Language setting
• Troubleshoot
• Advanced Options
• System Image Recovery

Doesn't that command using -AllCritical basically just create a system image?

http://www.eightforums.com/tutorials/8956-system-image-create-windows-8-a.html

https://technet.microsoft.com/en-us/library/cc742083.aspx
 
Yes, it is just making a Windows image including all partition needed for proper operation. I think it is the easiest to make a proper Windows image - but that may be just me.
 
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