How to Install Windows 11 Without TPM 2.0 and Secure Boot (2026 Guide)

Windows 11 officially requires TPM 2.0, Secure Boot, and a supported CPU. But you can bypass these requirements and install it on any PC. Here are the three most reliable methods in 2026.

Check Why Your PC Fails

Run the official check first:

# Check TPM
Get-Tpm | Select-Object TpmPresent, TpmReady

# Check Secure Boot
Confirm-SecureBootUEFI

# Check RAM
[math]::Round((Get-WmiObject Win32_ComputerSystem).TotalPhysicalMemory/1GB, 1)

# CPU name
(Get-WmiObject Win32_Processor).Name

Or download PC Health Check from Microsoft for a GUI result.

Method 1: Enable fTPM in BIOS (Try First)

Many older CPUs have a built-in TPM that's simply turned off in BIOS:

Restart → press Del, F2, or F12 to enter BIOS
Look for one of these options:
- AMD fTPM (AMD CPUs)
- Intel PTT — Platform Trust Technology (Intel CPUs)
- Security Device or TPM Device
Set to Enabled
Save and restart
Verify: Win + R → tpm.msc → should show TPM is ready for use

This works for most PCs from 2016+. If it shows "TPM ready" — install Windows 11 normally, no other workarounds needed.

Method 2: Rufus with Bypass (Recommended for Clean Install)

Rufus creates a Windows 11 USB with TPM and Secure Boot checks disabled:

Step 1: Install Rufus

winget install Rufus.Rufus

Or download from rufus.ie

Step 2: Insert USB (minimum 8 GB)

Step 3: In Rufus:

Boot selection: click Download → select Windows 11 → download the ISO directly

Step 4: Click Start → a dialog appears:

✅ Remove requirement for TPM 2.0
✅ Remove requirement for Secure Boot
✅ Remove requirement for 4GB+ RAM (optional)
✅ Create a local account (skips Microsoft account requirement)

Step 5: Click OK → wait for Rufus to write the USB

Step 6: Boot from USB → install Windows 11 normally

This is the most reliable method for a clean install on unsupported hardware.

Method 3: Registry Bypass During In-Place Upgrade

Use this when upgrading from Windows 10 without clean install:

When the "This PC can't run Windows 11" screen appears:

Press Shift + F10 → Command Prompt opens
Type regedit → Enter
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup
If the key doesn't exist: right-click Setup → New → Key → name it MoSetup
Right-click MoSetup → New → DWORD (32-bit) Value
Name: AllowUpgradesWithUnsupportedTPMOrCPU
Value: 1
Close regedit and CMD → click Refresh on the compatibility screen → proceed

Method 4: Skip TPM Check via appraiserres.dll

For ISO-based installation when Rufus isn't available:

rem After mounting/extracting the Windows 11 ISO
rem Run setup with compatibility check disabled
setup.exe /product-key XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /compat IgnoreWarning

After Installing on Unsupported Hardware

# Verify Windows 11 is installed
(Get-WmiObject Win32_OperatingSystem).Caption

# Check if updates are coming through
(New-Object -ComObject Microsoft.Update.SystemInfo).RebootRequired

Microsoft officially states unsupported PCs may not receive future updates. In practice, updates continue arriving — but monitor this quarterly.

Which Method to Use

Situation	Best method
CPU from 2016+, fTPM just disabled	Method 1 (BIOS)
Clean install on old hardware	Method 2 (Rufus)
Upgrading from Windows 10	Method 3 (Registry)
No USB available	Method 4 (setup.exe)

Читай також:

Summary

First: try enabling fTPM/PTT in BIOS — this fixes most cases instantly. For clean install: Rufus with bypass options is the most reliable. For upgrade from Windows 10: registry key AllowUpgradesWithUnsupportedTPMOrCPU = 1. All methods work on Windows 11 23H2 and 24H2 in 2026.