How to Install Windows 11 Using a USB Drive or ISO File – Complete Step-By-Step Guide – BisonKB

How to Install Windows 11 Using a USB Drive or ISO File – Complete Step-By-Step Guide

Posted on 23-11-2025 | Category: General | Views: 7


Installing Windows 11 is easier than ever, whether you choose a bootable USB drive or install directly from an ISO file. This guide will walk you through both methods with the system requirements and important precautions.


? Windows 11 System Requirements (Important)

Your PC must support:

  • TPM 2.0

  • Secure Boot

  • UEFI Boot Mode

  • 4GB RAM or more

  • 64GB storage or more

  • Dual-core 64-bit processor

  • DirectX 12 compatible graphics

? Check compatibility using the PC Health Check Tool.


? Method 1: Install Windows 11 Using a Bootable USB Drive

Requirements:

  • USB Pendrive – 8GB or more

  • Windows 11 ISO file

  • Media Creation Tool (optional)

  • Product Key (for activation)


? Step-by-Step Process

Step 1: Create a Bootable USB

Two ways:

A. Using Media Creation Tool

  1. Download the official tool from Microsoft website

  2. Run as Admin → Select Create installation media

  3. Choose USB Flash Drive

  4. Select your USB → Start the process

B. Using Rufus

  1. Download & open Rufus

  2. Select USB → Choose Windows 11 ISO

  3. Partition scheme:

    • GPT (UEFI) recommended

  4. Click Start

  5. Wait until completed ✔


Step 2: Boot from USB

  1. Insert USB into target PC

  2. Restart and enter Boot Menu (F2/F12/DEL/ESC key depending on device)

  3. Select USB Boot

  4. Windows setup will open


Step 3: Install Windows 11

  1. Click Install Now

  2. Select language, time & keyboard layout

  3. Choose Custom: Install Windows only

  4. Create/Delete partitions if needed

  5. Select drive for installation

  6. Wait 10–30 minutes while PC restarts

After setup → add username, password, Wi-Fi, privacy options, and complete setup.


? Method 2: Install Windows 11 Using an ISO File (Without USB)

When to use:

✔ System already running Windows
✔ No USB drive available

Steps:

  1. Right-click Windows 11 ISO → Select Mount

  2. Open mounted drive

  3. Run setup.exe

  4. Choose:

    • Keep personal files and apps

    • OR Clean install

  5. Click Install

  6. Follow onscreen instructions until installation completes


? Final Steps After Installation

  • Install latest drivers from manufacturer

  • Run Windows Update

  • Activate Windows via:

    • Digital License

    • or Valid Product Key


✔ Conclusion

Both USB and ISO installation methods make Windows 11 installations smooth and user-friendly. Just ensure your PC supports TPM 2.0 and Secure Boot for a trouble-free upgrade or clean install.


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Tags:
Windows 11 installation install Windows 11 bootable USB Windows 11 ISO installation Windows 11 Media Creation Tool Rufus Windows 11 secure boot TPM 2.0 check UEFI boot GPT partition Windows 11 setup PC health check tool system requirements Win
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