How to boot from USB Drive (Setup Windows 7, 8, 8.1 and 10 from USB) - Free Online Tutorial

Booting from USB is the most easy and common way to setup Windows on your PC. It will help you in the case even if your PC doesn't have a working CD/DVD Drive to boot from.

We have a lot of ways to boot from an USB Drive. But here we'll see best two methods among them. The first one is a software tool that will help you to do this in an easy way and the second one is using command prompt to do this...


1. Using Rufus Software:

Rufus is a single executable file which runs on your system without installation as a portable software. Download the latest version of Rufus using the download link provided here. Then run it with elevated permissions by right clicking it and selecting Run as administrator


Then select the USB Drive drive listed from the menu on which you want to setup the Bootable Windows Installation. And then click on the CD icon to browse and select the OS ISO Image.


After selecting the image, it will automatically detect the OS type and is ready to begin the operation. Now click on Start to begin the operation. Let it do everything for you. After finishing it, your USB Drive is ready to boot from it.

Be sure that you have to re-arrange your boot order to boot from the USB Drive. Do it from your BIOS/CMOS setup or you may use the one time boot menu if your BIOS supports it.

Download Rufus from here [Rufus Download]



2. Using Command Prompt:

This method is a longer process and will make you to do lot of things manually. But this method will help you in cases if you do not have an active internet connection and there is no software tools available for you to do this simply. So, learning this method is a very good thing for you...

To do this, open command prompt with elevated permissions by going to Start, type "cmd", you will find command prompt in the search results, then right click on it and select Run as administrator.


Then type diskpart in the command window and press enter, which will open disk partitioning tool in the command line. Be sure that you have plugged in your USB Drive before running this command.


Then type list disk in the command window and press enter which will display the list of physical disks available in the system.


Find your pen drive using the size shown there. In this example, disk 3 is the pen drive.


Then type select disk 3 in the command window and press enter which will select the USB Drive (In this example, disk 3 is pen drive, it may change for you. Be sure you type the correct disk number).


Then type clean in the command window and press enter which will delete all the partitions on the USB Drive.


Then type create partition primary in the command window and press enter which will create a primary partition on the USB Drive.


Then type active in the command window and press enter which will mark the current partition as active partition.


Then type format fs=ntfs quick in the command window and press enter which will format the USB Drive in NTFS File System.


Then type assign in the command window and press enter which will assign a drive letter for the USB Drive to be mounted.


Then type exit in the command window and press enter which will exit from the Disk Part.


Now we need Windows setup files to continue. So, insert your Windows Installation CD/DVD or mount Windows ISO Image using a software like Ultra ISO or Power ISO.



Now, find the drive letter of your mounted Windows Setup DVD and the drive letter of your USB Drive, Then, again open elevated command prompt and type the drive letter of your CD/DVD Drive contains Windows Setup.  In this example, the drive letter of DVD Drive is G: and the drive letter of USB Drive is I:




Now type G: in the command prompt to navigate to G: Drive


Then type cd boot to navigate to the folder named boot


Then type bootsect.exe /nt60 I: /force to write BOOTMGR Based boot code on the specified drive. Here I: is the USB Drive.


Now copy all the Windows Setup Files from the DVD Drive to the USB Drive.


 


That's all, now you can boot from this USB and setup windows from it.


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