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 you can create (burn) a bootable DVD or USB drive containing Windows installation files.
This tutorial will help you install Windows from .iso image file via bootable USB drive. It is a 3-step process explained with pictures and screenshots. All you need is at least 4 GB flash drive for Win 7 and 8 GB USB for Windows 8 or 10.
This article is a 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
This allows you to install new Windows OS onto your PC. If you change the boot order of drives in your PC’s BIOS, you can run the Windows installation directly from your DVD or USB drive when you first turn on your computer. You can search for information about how to change the boot order of drives in your PC BIOS.
An Original Windows 7 USB Installation Guide
You need Windows ISO image file + ISO to USB burner software + USB flash drive to create Windows 7 USB install disk.
1. Download Windows 7 Ultimate ISO File
2. Download and Install Windows 7 USB/DVD tool
This is Microsoft’s genuine tool to burn Win7 ISO to a bootable USB drive. Download here.
To install the Windows USB/DVD Tool, you must be an administrator on the computer on which you are installing the tool.
Note: For 32-bit Windows OS Users
Users who are running 32bit Windows need “bootsect” file to burn a 64bit ISO file on USB drive successfully. bootsect.exe must be present in the same folder as the .iso file. You can download the file below.
3. 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 the 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 plug in 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.