Introduction

Windows 11 is one of the most advanced and visually polished operating systems from Microsoft. But before installing it, users often ask one important question: How much space does Windows 11 take?
In this guide, we’ll break down the storage requirements for installation, upgrade, and USB bootable drive creation. We will also compare the storage size of Windows 11 with Windows 10 so you can plan your disk usage easily.

We’ve also included useful internal links for deeper learning:

• How to fix Windows 10 stuck on restarting screen
• How to update drivers on Windows 11
• Windows 11 setup without internet

How Much Space Does Windows 11 Take?

Microsoft officially recommends 64GB of minimum storage to install Windows 11. However, the actual space Windows 11 takes after installation depends on the edition, updates, and system configuration.

• Windows 11 Home / Pro installation size: 20GB – 30GB
• After updates: 30GB – 40GB
• Recommended storage for smooth performance: At least 128GB SSD

1. How Much Space Does Windows 11 Take After Installation?

After a fresh installation, Windows 11 usually occupies:

👉 20GB to 30GB (without major updates)
👉 30GB to 40GB (after installing cumulative updates)

This includes system files, reserved storage, WinSxS folder, and driver packages.

Why does Windows 11 take more space?

• Modern UI design
• Better security features
• Larger system components
• Built-in apps and system packages

If you’re using a 64GB storage device, Windows 11 will still work, but available free space will be limited.

2. How Much Space Does Windows 11 Take on a USB for Bootable?

To create a Windows 11 bootable USB:

• You need at least: 8GB USB drive
• Recommended USB size: 16GB

The Windows 11 ISO file size is usually 5.2GB – 6GB, which fits comfortably on an 8GB pen drive.

But if you’re adding multiple versions or customizations, a 16GB USB is better.

3. How Much Space Does Windows 11 Take Compared to Windows 10?

Here is a clear comparison:

Conclusion of Comparison

Windows 11 takes more space than Windows 10 because of higher-quality visuals, secure boot features, and system optimizations.

4. How Much Space Does Windows 11 Take to Upgrade?

If you’re upgrading from Windows 10 to Windows 11:

👉 You need at least 64GB of free storage.
👉 Windows 11 upgrade setup itself takes around 20GB – 25GB temporary space.

During the upgrade, Windows uses extra space to store:

• Backup of your old Windows installation
• Update files
• Temporary logs
• Feature packs

After the upgrade finishes, temporary files can be deleted using Storage Sense or Disk Cleanup.

Conclusion

Windows 11 requires more space compared to older versions like Windows 10, mainly because of additional system components and improved features. Whether you’re performing a fresh installation, creating a bootable USB, or upgrading from Windows 10, having enough free storage ensures smooth performance.

For more Windows tricks and troubleshooting, check these guides:

• How to fix Windows 10 stuck on restarting screen
• How to update drivers on Windows 11
• Windows 11 setup without internet

FAQs

1. How much space does Windows 11 need to install?

Windows 11 requires 64GB minimum, but the actual installation takes 20–30GB.

2. Is 64GB storage enough for Windows 11?

Yes, it works, but you will have limited space for apps and updates.

3. How large is the Windows 11 ISO file?

The ISO size is around 5.2GB to 6GB.

4. How much space does Windows 11 take after installation?

It takes around 30GB to 40GB after updates.

5. How much space does Windows 11 take on a USB drive?

At least 8GB, but 16GB is recommended.