How to Get Windows 11 26H1: What It Is, Who It's For, and How to Install It

Before downloading Windows 11 26H1, verify your system meets the updated requirements. Microsoft has refined the hardware requirements for this release.

Get-ComputerInfo | Select-Object WindowsProductName, WindowsVersion, TotalPhysicalMemory

Run the PC Health Check app to verify compatibility:

winget install Microsoft.PCHealthCheck

Launch PC Health Check and click 'Check now' to verify TPM 2.0, Secure Boot, and CPU compatibility.

Verification: The PC Health Check tool will display a green checkmark if your system is compatible, or specific error messages for any missing requirements.

Microsoft provides multiple download options for Windows 11 26H1. The Media Creation Tool is the most reliable method for most users.

Visit the official Windows 11 download page and download the Media Creation Tool:

curl -L -o MediaCreationToolW11.exe https://go.microsoft.com/fwlink/?linkid=2156295

Alternatively, download the ISO directly if you prefer manual control:

1. Go to microsoft.com/software-download/windows11
2. Select 'Download Windows 11 Disk Image (ISO)'
3. Choose 'Windows 11 (multi-edition ISO)'
4. Select your language and click 'Confirm'
5. Choose 64-bit download

Verification: The downloaded Media Creation Tool should be approximately 19MB, and the ISO file should be around 6.2GB for Windows 11 26H1.

Create bootable installation media using the Media Creation Tool. You'll need a USB drive with at least 8GB capacity.

Run the Media Creation Tool as administrator:

MediaCreationToolW11.exe

Follow these steps in the tool:

1. Accept the license terms
2. Select 'Create installation media (USB flash drive, DVD, or ISO file)'
3. Choose language, edition, and architecture (64-bit)
4. Select 'USB flash drive' and choose your drive
5. Wait for the download and creation process (30-60 minutes)

If you downloaded the ISO manually, create bootable media using Rufus:

winget install Rufus.Rufus

Launch Rufus, select your USB drive, choose the Windows 11 26H1 ISO, and click 'START'.

Verification: Your USB drive should show as 'ESD-USB' or similar, containing folders like 'boot', 'efi', 'sources', and 'support'.

Before proceeding with installation, create comprehensive backups. Windows 11 26H1 installation can preserve files, but it's always safer to backup manually.

Create a system restore point:

Enable-ComputerRestore -Drive "C:"
Checkpoint-Computer -Description "Before Windows 11 26H1 Installation" -RestorePointType "MODIFY_SETTINGS"

Backup your important files using robocopy:

robocopy C:\Users\%USERNAME%\Documents D:\Backup\Documents /E /R:3 /W:10
robocopy C:\Users\%USERNAME%\Desktop D:\Backup\Desktop /E /R:3 /W:10
robocopy C:\Users\%USERNAME%\Pictures D:\Backup\Pictures /E /R:3 /W:10

Export your installed programs list:

Get-WmiObject -Class Win32_Product | Select-Object Name, Version | Export-Csv -Path "C:\Backup\installed_programs.csv" -NoTypeInformation

Create a recovery drive:

recoverydrive

Verification: Check that your backup folders contain the expected files and that the recovery drive creation completed successfully.

Windows 11 26H1 can be installed via in-place upgrade (preserving files and programs) or clean installation (fresh start). Choose based on your needs.

Method 1: In-Place Upgrade (Recommended for most users)

Mount the ISO file or insert your USB drive, then run setup from within Windows:

D:\setup.exe /auto upgrade /quiet /compat scanonly

This command performs a compatibility scan first. If successful, run the actual upgrade:

D:\setup.exe /auto upgrade

Method 2: Clean Installation

Boot from your installation media by changing boot priority in BIOS/UEFI:

1. Restart your computer
2. Press F2, F12, or Delete (varies by manufacturer) to enter BIOS
3. Navigate to Boot settings
4. Set USB drive as first boot device
5. Save and exit

Verification: For upgrade, Windows Setup will show compatibility results. For clean install, you should see the Windows logo and installation options.

The installation process varies slightly depending on your chosen method. Here's what to expect and how to handle each phase.

For In-Place Upgrade:

The Windows 11 Setup will guide you through several phases:

1. Compatibility Check: Windows verifies system requirements
2. Download Phase: Additional files are downloaded (if needed)
3. Installation Phase: System files are updated and configured
4. Restart Phase: Multiple automatic restarts occur
5. Configuration Phase: Final setup and user account configuration

Monitor the installation progress and don't interrupt the process. The system will restart multiple times automatically.

For Clean Installation:

Boot from your installation media and follow these steps:

1. Select language, time, and keyboard preferences
2. Click 'Install now'
3. Enter your Windows 11 product key (or skip if upgrading from activated Windows 10/11)
4. Accept license terms
5. Choose 'Custom: Install Windows only (advanced)'
6. Select the drive/partition for installation
7. Wait for file copying and installation (45-90 minutes)

Verification: The installation is progressing correctly if you see percentage completion and the system restarts automatically without errors.

After installation completes, Windows 11 26H1 will guide you through the Out-of-Box Experience (OOBE). This is where you configure your new system.

Initial Setup Steps:

1. Region and Language: Confirm your location and preferred language
2. Keyboard Layout: Select your keyboard configuration
3. Network Connection: Connect to Wi-Fi or Ethernet
4. Microsoft Account: Sign in or create a Microsoft account (or choose domain join for business)
5. Privacy Settings: Configure telemetry and privacy options
6. Copilot+ Setup: Configure the enhanced AI assistant features in 26H1

For domain-joined systems, use these commands after initial setup:

Add-Computer -DomainName "yourdomain.com" -Credential (Get-Credential) -Restart

Configure Windows Update to ensure you get the latest patches:

Install-Module PSWindowsUpdate -Force
Get-WindowsUpdate -Install -AcceptAll -AutoReboot

Verification: Check Windows version to confirm successful installation:

winver

You should see 'Version 26H1 (OS Build 26100.xxx or higher)'.

After Windows 11 26H1 installation, install the latest drivers and updates to ensure optimal performance and compatibility.

Check for Windows Updates first:

Get-WindowsUpdate -Install -AcceptAll

Install essential drivers using Windows Update or manufacturer tools:

pnputil /scan-devices
pnputil /enum-drivers

For NVIDIA graphics cards:

winget install Nvidia.GeForceExperience

For AMD graphics cards:

winget install AMD.AMDSoftwareAdrenalinEdition

For Intel systems, install Intel Driver & Support Assistant:

winget install Intel.IntelDriverAndSupportAssistant

Verify all critical drivers are installed:

Get-WmiObject Win32_PnPEntity | Where-Object{$_.ConfigManagerErrorCode -ne 0} | Select Name, ConfigManagerErrorCode

Verification: Device Manager should show no devices with yellow warning triangles, and Windows Update should report 'You're up to date'.

Confirm your Windows 11 26H1 installation is working correctly and explore the new features introduced in this version.

Run system diagnostics to verify installation integrity:

sfc /scannow
Dism /Online /Cleanup-Image /RestoreHealth

Check system performance and stability:

Get-ComputerInfo | Select-Object WindowsProductName, WindowsVersion, TotalPhysicalMemory, CsProcessors

Test key Windows 11 26H1 features:

• Enhanced Copilot+: Press Win+C to access the improved AI assistant
• New Start Menu: Verify the redesigned Start menu with better search
• Improved Snap Layouts: Test Win+Z for enhanced window management
• Enhanced Security: Check Windows Security for new threat protection features

Verify system activation:

slmgr /xpr

Run Windows Memory Diagnostic to ensure system stability:

mdsched

Verification: All system checks should pass without errors, and new features should be accessible through their respective shortcuts or Settings app.