How to Bypass Windows 11 Minimum Requirements for Installation

If you’ve ever tried installing Windows 11 on an older PC, you’ve probably met Microsoft’s infamous warning: “This PC can’t run Windows 11.”

That message pops up because your device doesn’t meet the official minimum requirements — things like TPM 2.0, Secure Boot, or a supported processor. While these requirements are meant to improve security and performance, they’ve also left many perfectly functional PCs out in the cold.

But here’s the good news — with a few smart tweaks, you can still install Windows 11 even if your PC doesn’t tick every box. In this guide, we’ll walk you through every reliable way to bypass those checks — step by step — while also explaining what you should (and shouldn’t) do.

Why Windows 11 Has Minimum Requirements

Microsoft’s requirements aren’t arbitrary. TPM 2.0 and Secure Boot exist to help protect against modern malware and unauthorized firmware changes. However, many older PCs simply don’t include those features, or have them turned off by default.

That’s why Microsoft allows some unsupported installations — but with a big catch: Unsupported PCs may not get future updates, including security patches.

If you still want to go ahead, you can. But understand the trade-offs first.

Before You Start

Make sure you’ve got everything ready before trying to bypass the checks:

Back up your files. A full system backup is best, especially if you’re doing a clean install.
Download the Windows 11 ISO from Microsoft’s official website.
Have a USB flash drive (at least 8 GB) handy for creating bootable media.
Administrator access to your PC.
Basic familiarity with BIOS, UEFI, and Registry Editor.

Once you’ve got everything ready, let’s start with the safe fixes first.

Step 1: Enable TPM and Secure Boot in BIOS

Before trying any bypass, it’s worth checking if your hardware actually supports Windows 11. Many systems already have TPM (either Intel PTT or AMD fTPM), but it’s simply disabled.

Restart your PC and press F2, DEL, or F10 to enter the BIOS/UEFI setup.
Look for TPM, PTT, or fTPM under the Security or Advanced tab.
Enable it.
While you’re there, switch your system to UEFI mode (if it’s not already) and enable Secure Boot.
Save and exit the BIOS.

Now try running the Windows 11 installer again. If it still complains, move to the next method.

Step 2: Bypass Requirements Using Registry Editor (Upgrade Install)

If you’re upgrading from Windows 10 to Windows 11, this registry tweak tells the installer to skip the TPM and CPU checks.

Mount your Windows 11 ISO or insert the installation USB.
Run setup.exe from within Windows 10.
If you see the “This PC can’t run Windows 11” message, press Shift + F10 to open Command Prompt.
Type regedit and press Enter.
In Registry Editor, navigate to: HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup If the MoSetup key doesn’t exist, right-click Setup → New → Key → name it MoSetup.
Inside the MoSetup key, right-click the blank area and select New → DWORD (32-bit) Value.
Name it: AllowUpgradesWithUnsupportedTPMOrCPU
Double-click it and set the value to 1.
Close everything and restart setup.

The installation should now continue normally, skipping the unsupported hardware checks.

Step 3: Create “LabConfig” Keys to Skip All Checks (Clean Install)

If you’re doing a fresh install, you can also bypass TPM, Secure Boot, and CPU checks directly from setup.

Boot from your Windows 11 USB installer.
When the “This PC can’t run Windows 11” message appears, press Shift + F10 to open Command Prompt.
Type regedit and hit Enter.
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\Setup
Right-click Setup and select New → Key, then name it LabConfig.
Inside LabConfig, create three new DWORD (32-bit) values:
- BypassTPMCheck → set to 1
- BypassCPUCheck → set to 1
- BypassSecureBootCheck → set to 1
Close Registry Editor and restart the setup process.

The installer will now skip all hardware checks.

Step 4: Remove “appraiserres.dll” from Installation Files

This classic trick disables the system compatibility check by removing the DLL file responsible for it.

Download the Windows 11 ISO from Microsoft’s website.
Mount it or extract it to a new folder.
Open the folder and go to: sources
Find the file named appraiserres.dll and delete it.
(Some users replace it with the same file from a Windows 10 ISO instead.)
Rebuild the ISO or copy the modified setup files to a USB drive.
Boot from the USB and install Windows 11 as usual.

This method is a bit crude, but it works reliably on older systems.

Step 5: Use Rufus to Create a Bypass USB (Easiest Method)

If you’d rather skip all the manual editing, Rufus can handle it for you.

Download the latest version of Rufus from rufus.ie.
Download the official Windows 11 ISO from Microsoft’s site.
Plug in your USB drive and open Rufus.
Select the ISO and wait for Rufus to detect it.
When prompted, choose “Remove requirement for TPM 2.0 and Secure Boot” (the exact wording may vary).
Click Start and let Rufus create your installer.
Once done, boot from the USB and install Windows 11.

This method is fast, beginner-friendly, and works across most unsupported hardware.

After Installation: What to Expect

Once Windows 11 is installed on unsupported hardware, you may notice a few things:

A watermark may appear on your desktop saying, “System requirements not met.”
You might not receive automatic updates, including security updates.
Some new features could be restricted or unstable on older processors.
Microsoft does not provide support for unsupported installations.

To stay safe, always keep manual backups and occasionally check for updates through Windows Update or Microsoft Update Catalog.

Troubleshooting Tips

Installer still blocking? Try the Rufus method — it tends to work even when registry tweaks don’t.
Setup crashes or freezes? Use a fresh ISO from Microsoft; avoid modified versions from third-party sites.
Windows Update fails afterward? That’s normal for unsupported PCs. You can manually download updates if needed.

Wrapping Up

Bypassing Windows 11’s minimum requirements isn’t as hard as it sounds — but it’s not something to do lightly. Microsoft made those rules for a reason, and ignoring them means you’re on your own if things go wrong.

If your hardware supports TPM or Secure Boot, enable them — that’s always the best route. But if you’re determined to install Windows 11 on an older PC, Rufus is the safest and easiest way to go. Just remember to back up your data, keep an eye on stability, and understand that future updates may not always be guaranteed.