This tutorial will guide you step-by-step on how to install Windows 10 Pro using a bootable USB flash drive. Follow each step carefully for a smooth installation.

📋 Requirements

Before starting, make sure you have:

• USB flash drive (minimum 8GB)

• Stable internet connection

• Windows 10 ISO file or Media Creation Tool

• Product key (optional during installation)

• Backup of important data (for clean install)

🔹 Step 1: Download Windows 10 Installation Files

1. Visit the official Microsoft website.

2. Download the Media Creation Tool.

3. Run the tool and select:

   Create installation media (USB flash drive, DVD, or ISO file)

4. Choose:

   • Language

   • Edition: Windows 10

   • Architecture: 64-bit (recommended)

5. Click Next.

🔹 Step 2: Create a Bootable USB

Method 1: Using Media Creation Tool (Recommended)

1. Insert your USB drive.

2. Select USB flash drive when prompted.

3. Choose your USB device.

4. Click Next and wait until the process finishes.

Method 2: Using Rufus

1. Open Rufus.

2. Insert your USB drive.

3. Click Select and choose the Windows 10 ISO file.

4. Set Partition Scheme:

   • GPT (for UEFI systems)

   • MBR (for Legacy BIOS)

5. Click Start.

6. Wait until the process is complete.

🔹 Step 3: Boot from the USB Drive

1. Insert the bootable USB into the target PC.

2. Restart the computer.

3. Press the boot key (F12, F9, ESC, DEL — depends on your motherboard).

4. Select the USB drive from the boot menu.

🔹 Step 4: Install Windows 10 Pro

1. Choose language and keyboard layout.

2. Click Install Now.

3. Enter your product key or select I don’t have a product key.

4. Select Windows 10 Pro from the edition list.

5. Accept the license terms.

6. Choose installation type:

   • Upgrade (keeps files and apps)

   • Custom (clean install – recommended)

7. Select the target partition.

8. Click Next.

Windows will begin installing automatically. The system may restart several times.

🔹 Step 5: Complete Initial Setup

After installation:

1. Select your region.

2. Connect to Wi-Fi.

3. Sign in with a Microsoft account or create a local account.

4. Create a PIN.

5. Adjust privacy settings.

Your Windows 10 Pro installation is now complete.

🔑 Activating Windows 10 Pro

1. Open Settings.

2. Go to Update & Security.

3. Click Activation.

4. Enter your product key if Windows is not activated.

⚠️ Important Notes

• Always back up your files before a clean install.

• Make sure BIOS boot mode matches your USB partition format.

• Disable Secure Boot if the USB is not detected.

• Use GPT for modern UEFI systems.