This tutorial will help you with the installation of Windows from image (.iso and .img) file using USB Drive. It is step by step method with pictures and screenshots. Without any CD/DVD. All you need is a USB flash drive of at least 4GB for Win 7 and 8GB for Windows 8 or 10. This article is a detailed 100% Working Guide. It covers these topics:
⇒ How to Create Windows 7 Bootable USB Drive ⇒ How to Install Windows 7 from ISO File ⇒ Windows 7 USB Installation Guide ⇒ Install Windows 7 on USB
When you download Windows from Microsoft Store or any online source, you download it as an ISO file. An ISO file combines all the Windows installation files into a single uncompressed file – like a DVD clone or backup. With ISO file so you can create (burn) a bootable DVD or USB drive containing Windows installation files.
Windows 7 USB Installation Guide
You need Windows image file + ISO to USB burner software + USB flash drive to create Windows 7 USB Install Disk.
Download Windows 7 Ultimate ISO File
If you don’t already have windows 7 image then you can get the ISO file from Windows 7 download page. The most popular edition is Windows 7 Ultimate ISO. Choose 32bit or 64bit version.
Download and Install Windows 7 USB/DVD tool
This is Microsoft’s genuine tool to make USB drive bootable. It can be downloaded here.
To install the Windows USB/DVD Tool, you must be an administrator on the computer on which you are installing the tool.
For 32bit Windows Users Users who are running 32bit Windows need “bootsect” file to burn (copy) 64bit ISO file on USB drive successfully.
bootsect.exe must be present in the same folder as the .iso file. It can be downloaded here
Create Windows 7 Bootable USB Drive From ISO File
After you have downloaded above Windows 7 USB tool. Now Make a USB copy of your Windows ISO file, using this Tool.
Step 1 – Open this tool from your programs. e.g Start ⇒ All Programs. Click on Browse button and go to path where your windows iso file is located. Select Windows 7 ISO file and click Open.
Step 2 – Click on USB Device as media type you would like to use to create windows 7 bootable USB drive.
Step 3 – From Drop Down box select your USB Pen drive letter e.g. H: or I: or G: and then click Begin copying. After the process is completed the USB is now bootable. Turn off your computer and plugin USB. Now Turn on PC and boot from USB. Done.
When your Windows ISO file is copied, install Windows by moving to the root folder of your USB drive, and then double-click Setup.exe.
New Method 100% Working & Tested
Install the Rufus Software and Open it. It can be downloaded here. After you open it. Follow Below Steps:
Plug in your Pen Drive into USB Flash Port.
To make a Windows bootdisk (Windows XP/7) select NTFS as file system from the drop down.
Then click on the buttons that looks like a DVD drive, that one near to the checkbox that says “Create bootable disk using:”