Windows 11 Pro Download (Official ISO): How to Download, Install & Activate

This step-by-step guide explains how to download Windows 11 Pro, perform a clean installation, and activate it with a genuine product key. Whether you're upgrading from Windows 10 or installing fresh, follow these official Microsoft methods to get Windows 11 Pro running on your PC.

🔑 Need a genuine key? Buy a genuine Windows 11 Pro product key from LicenceHouse and activate in minutes.

Method 1 – Windows 11 Pro ISO Download & Clean Install

Use this method if you are running an older version of Windows or setting up a new PC without an operating system.

Step 1: Check Windows 11 Pro System Requirements

Before downloading, confirm your PC meets the minimum requirements for Windows 11 Pro:

• Processor: 1 GHz or faster, 2+ cores, 64-bit compatible or SoC
• RAM: 4 GB minimum
• Storage: 64 GB or larger
• Firmware: UEFI with Secure Boot enabled
• TPM: Trusted Platform Module (TPM) version 2.0
• Graphics: DirectX 12 compatible, WDDM 2.0 driver
• Display: 720p HD, 9" diagonal or larger, 8-bit colour
• Internet: Required for setup and activation

💡 Use Microsoft's free PC Health Check tool to verify compatibility before you begin.

Backup your data before proceeding. Although installation is straightforward, backing up protects against accidental data loss.

Step 2: Download the Windows 11 Pro ISO from Microsoft

1. Go to the official Microsoft Windows 11 download page.
2. Under "Download Windows 11 Disk Image (ISO)", select Windows 11 (multi-edition ISO).
3. Choose your language and click Confirm.
4. Click the 64-bit Download link and save the ISO file to your PC.

Step 3: Download the Windows 11 Media Creation Tool

Alternatively, use Microsoft's Media Creation Tool to create bootable installation media automatically:

Download Windows 11 Media Creation Tool →

The tool does not require installation. After launching it, you can either upgrade your current PC or create a bootable USB drive / DVD. Prepare a USB flash drive with at least 8 GB of free space before starting.

Step 4: Create a Bootable USB Drive for Windows 11

1. Run the Media Creation Tool and accept the licence terms.
2. Select "Create installation media for another PC".
3. Choose your preferred language.
4. Select Edition: Windows 11 (includes both Pro and Home).
5. Select Architecture: 64-bit (x64).
6. Select media type: USB flash drive (or ISO file to burn to DVD).
7. Select your USB drive and let the tool create the bootable media.

Step 5: Install Windows 11 Pro – Clean Install Guide

1. Insert the bootable USB drive into your PC.
2. Restart and enter BIOS/UEFI (common keys: F2, F12, Del, Esc — check your motherboard manual).
3. Set the USB drive as the first boot device and save changes.
4. Your PC will boot from USB. Follow the on-screen setup wizard.
5. Select your language, time format, and keyboard layout, then click Next.
6. Click Install Now.
7. Enter your Windows 11 Pro product key, or click "I don't have a product key" to activate later.
8. Select Windows 11 Pro from the edition list.
9. Accept the licence agreement and choose Custom: Install Windows only (advanced) for a clean install.
10. Select the target drive/partition and click Next.
11. Wait for installation to complete — your PC will restart several times.
12. Complete the initial Windows setup (account, privacy settings, etc.).

Method 2 – Upgrade from Windows 11 Home to Pro (No Data Loss)

If you already have Windows 11 Home installed and want to upgrade to Pro, you do not need to reinstall Windows. Follow these steps:

1. Press Windows Key + I to open Settings.
2. Go to System → Activation.
3. Click Change product key.
4. Enter your Windows 11 Pro product key and click Next.
5. Click Start — the upgrade will begin and your PC will restart (approximately 5–10 minutes).
6. After the upgrade completes, your PC will run Windows 11 Pro with all your files intact.

✅ Buy a Windows 11 Home-to-Pro upgrade key from LicenceHouse — no reinstall required.

How to Activate Windows 11 Pro with a Product Key

Once Windows 11 Pro is installed, activate it using your genuine licence key:

1. Open Settings → System → Activation.
2. Click Change product key.
3. Enter your 25-character product key and click Next → Activate.
4. Windows will contact Microsoft's servers to verify and activate your licence.

If you see activation error 0xc004c060, run the following commands in Command Prompt (Admin):

slmgr /upk
slmgr /cpky
slmgr /ipk YOUR-PRODUCT-KEY
slmgr /ato

To verify activation status, run: slmgr /dlv

Fix: Cannot Select Windows 11 Pro During Installation

If only "Windows 11 Home" appears during setup, create an ei.cfg file in the \sources folder of your USB drive with the following content:

[Channel]
Retail
[VL]
0

Save as file type "All Files" with the name ei.cfg, then restart the installation.

Frequently Asked Questions (FAQ)

Can I download the Windows 11 Pro ISO for free?

Yes — the ISO file itself is free to download from Microsoft's official website. However, a valid product key is required for activation and full access to all features.

How do I install Windows 11 Pro from a USB drive?

Create a bootable USB using the Media Creation Tool, set it as your boot device in BIOS, and follow the on-screen installation wizard. The process is the same for laptops and desktops.

How long does Windows 11 Pro installation take?

Typically between 20 minutes and 1 hour, depending on your hardware speed and whether you have an SSD or HDD.

Does Windows 11 Pro require TPM 2.0?

Yes. Windows 11 requires a TPM 2.0 chip and Secure Boot support. Use the PC Health Check app to verify before downloading.

Where can I buy a genuine Windows 11 Pro key?

You can buy a genuine Windows 11 Pro product key from LicenceHouse at the best price, with instant digital delivery and full activation support.

Related Guides: Windows 10 Pro Download Guide | Office 2021 Pro Plus Download Guide