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Can You Install Windows 11 Without TPM 2.0? What Microsoft Supports

Understand the Windows 11 TPM 2.0 requirement, what an unsupported installation means, and what to check before attempting any hardware-requirement workaround.

By Shantanu3 min read
Illustration of a security chip, compatibility check, and laptop.

Windows 11 officially requires TPM 2.0. Microsoft does not recommend installing Windows 11 on a PC that does not meet the minimum hardware requirements.

The recovered version of this article described several bypass techniques. That guidance has been materially revised because Microsoft currently states that unsupported installations are not supported and are not guaranteed to receive updates, including security updates.

First, check whether TPM is present but disabled

A PC can fail the Windows 11 check even when its processor or motherboard includes firmware TPM.

  1. Press Windows + R.
  2. Enter tpm.msc.
  3. Check Specification Version.

If a compatible TPM cannot be found, check the PC or motherboard manufacturer’s firmware documentation. TPM may appear as Intel PTT, AMD fTPM, Security Device, or a similar name.

Do not clear an existing TPM unless you understand the consequences. Clearing TPM can affect BitLocker and other protected credentials.

Confirm the rest of the Windows 11 requirements

TPM is only one requirement. Windows 11 also requires, among other things:

  • a supported 64-bit processor;
  • UEFI firmware with Secure Boot capability;
  • at least 4 GB RAM;
  • at least 64 GB storage;
  • DirectX 12/WDDM 2.0 graphics support.

Use Microsoft’s PC Health Check before considering an unsupported install.

What happens on unsupported hardware?

Microsoft’s current support guidance says:

  • installing Windows 11 on ineligible hardware is not recommended;
  • the PC will not be supported by Microsoft;
  • compatibility problems or malfunctions may occur;
  • updates, including security updates, are not guaranteed;
  • damage caused by incompatibility might not be covered by the manufacturer’s warranty.

Microsoft recommends returning to a supported operating system if Windows 11 has already been installed on ineligible hardware and problems occur.

About registry, ISO, and third-party bypass methods

Community methods exist that attempt to bypass processor, TPM, or setup checks. They have changed over time and can stop working with newer Windows 11 releases. Because Microsoft does not support the resulting configuration, this article does not present those workarounds as a normal installation path.

If you are evaluating unsupported hardware for testing rather than daily use, create a full backup and recovery media first and understand that future feature updates may require additional manual work.

Supported alternatives

  1. Enable TPM/UEFI/Secure Boot if the hardware already supports them.
  2. Upgrade supported hardware components where practical.
  3. Replace the PC if it cannot meet the requirements and continued Windows support is important.

Windows 10 reached end of support on October 14, 2025, although Microsoft offers Extended Security Updates for eligible systems during the transition period.

Official references

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