How to Upgrade to Windows 11 Without Internet — Complete Offline Guide (2025)

A USB flash drive next to a laptop displaying the Windows 11 Setup screen with a ‘No internet’ message, symbolizing offline installation.

Introduction:

Are you wondering:

“Can I upgrade my PC to Windows 11 even if I don’t have internet access?”

You’re not alone. Many people today face limited or unstable internet connections but still want to upgrade their system. Whether you live in a remote area, manage multiple machines, or simply prefer privacy, an offline Windows 11 upgrade can be possible — if you prepare correctly.

In this detailed guide, I’ll walk you step-by-step through:

  • How to prepare an offline installation
  • What you need beforehand
  • Potential problems and how to avoid them
  • Extra tips for bypassing restrictions (TPM, Secure Boot, Microsoft Account)

Let’s get started!

Can You Upgrade to Windows 11 Without Internet?

By default, Windows 11 upgrades require an internet connection, especially when using Windows Update.

However, if you download the Windows 11 ISO file in advance, you can perform a full upgrade offline.

⚠ Important:

Before starting, always back up your data. Any major upgrade can go wrong unexpectedly.

Preparation: What You Need for Offline Installation

Here’s a simple checklist of what you need:

ItemDescription
Windows 11 ISO FileDownload from Microsoft’s official website (internet required at this stage)
USB Flash DriveAt least 8GB; to store the ISO file
Target PCCurrently running Windows 10 (check for TPM & Secure Boot compatibility)

Pro Tip:

Once you have the ISO file, you can reuse it to upgrade multiple PCs without re-downloading.

How to Download Windows 11 ISO File (You Need Internet For This Part)

If you have access to any internet-connected computer (even temporarily), follow these steps:

① Visit the official Microsoft Windows 11 Download Page:

https://www.microsoft.com/software-download/windows11

② Select “Download Windows 11 Disk Image (ISO)”

③ Choose your preferred language → Click Download

④ Save the ISO file to your USB flash drive.

You can now carry this USB drive to your offline PC.

Step-by-Step: Offline Upgrade Process

Once your USB is ready, perform the following steps on your offline machine:

① Insert USB drive into the target PC.

② Double-click on setup.exe inside the USB.

③ Follow on-screen instructions.

④ When asked:

“Check for updates before installing?” → Select “Not right now”

(This ensures you stay fully offline during installation.)

⑤ Agree to license terms.

⑥ At “What to keep”, select:

“Keep personal files and apps” (if you want to preserve your data).

⑦ Start installation → Wait until completion.

That’s it! Your Windows 11 offline upgrade is now complete.

What Happens After Offline Installation?

  • Windows 11 will fully install even without internet.
  • Some functions (like license activation, driver updates, etc.) will remain pending until you connect to the internet later.
  • If you stay offline permanently, you may need to manually install drivers from USB as well.

Caution: Possible Issues with Offline Upgrades

IssueExplanation
License Activation PendingWindows may not activate until internet connection is available. Once online, activation should occur automatically.
Outdated DriversOffline installation doesn’t update drivers. You might need to manually install latest drivers using separate USBs.
TPM/Secure Boot RequirementsOffline installation still checks hardware compatibility. If your machine lacks TPM 2.0 or Secure Boot, upgrade may fail mid-process.

Benefits of Offline Installation

  • No internet bandwidth needed during install
  • Can upgrade multiple machines with one ISO file
  • Can sometimes bypass Microsoft Account requirement (details below)

💡 Advanced Method

(⚠️ Not Officially Supported): Use Rufus to Bypass Restrictions

Some older machines fail because of hardware checks (TPM, Secure Boot) or account requirements. If you’re technically confident, you can use Rufus, a free USB creation tool.

How to Use Rufus (Advanced Users Only):

① Download Rufus:

https://rufus.ie

② Select your Windows 11 ISO file.

③ In Rufus options, enable:

  • Bypass TPM check
  • Bypass Secure Boot check
  • Bypass Microsoft Account requirement

④ Create bootable USB.

⑤ Boot target PC from this USB to install Windows 11 directly.

Note:

Rufus is widely used but not officially endorsed by Microsoft. Use with caution, especially for corporate or government devices.

2025 Updates — Changes You Should Know

  • Microsoft frequently updates their ISO download interface.
  • Newer ISO files may enforce stricter checks during offline setup.
  • Secure Boot & TPM 2.0 remain mandatory for most official offline installs.
  • Some cumulative updates may cause instability if applied too early during offline installs — consider pausing updates initially.

Before upgrading, always check:

  • BIOS settings (make sure Secure Boot & TPM are enabled if required)
  • Current Windows Update status
  • Available disk space

Frequently Asked Questions (FAQ)

Q1: Will Windows 11 activate without internet?

A :Some systems might not activate offline, but once you connect to internet later, activation will usually happen automatically.


Q2: I’m missing drivers after offline install — what should I do?

A :Prepare driver files on a second USB drive. Install manually after upgrade if necessary.



Q3: Can I install on very old PCs?

A :If TPM 2.0 and Secure Boot are missing, you may encounter errors. Rufus can help bypass some restrictions.

Summary

Upgrading from Windows 10 to Windows 11 offline is absolutely possible if you:

  • Prepare ISO file in advance
  • Use USB flash drive
  • Know the hardware requirements

Offline upgrades are very helpful for:

  • Remote areas with poor internet
  • Upgrading multiple PCs efficiently
  • Avoiding unnecessary Microsoft Account setups (in some cases)

Just remember:

Backup your data, verify compatibility, and prepare for some post-install manual adjustments.

✔️ Related Guides

▶︎Windows 11 Update Multiple Errors Occurring on Some Devices: Full Troubleshooting Guide

▶︎【Emergency Fix】Can’t Log in to Windows 11 After Update? PIN Reset Fails and Verification Code Never Arrives