First you need a minimum at 64 gb on free space.
The excitement level of installing a new Windows
operating system remains just the same and most of us
have had the pleasure to experience it multiple times.
However, the excitement is flushed down the drain when
you encounter an error for a problem that just cannot be
dismissed out of hand.
One such issue with installing Windows 11 is, it requires ‘Secure Boot’ along with ‘TPM 2.0’ enabled on a machine, and it is a pretty straightforward process to enable both of these options if you are on a ‘UEFI’ BIOS Mode. However, on a ‘Legacy BIOS Mode’, it’s a different ball game altogether.
1. Modify Windows 11 ISO Files to Boot Install from Legacy BIOS
The first workaround for installing Windows 11 on a ‘Legacy BIOS’ without Secure Boot and TPM is really effortless, provided you have all the pre-requisites mentioned below.
- Windows 11 ISO Image
- Bootable Windows 10 USB Drive (→ instructions)
- A computer running Windows 10 (preferably)
- 8GB USB Flash Drive
What’s the workaround?
you need to create a bootable Windows 10 USB drive and
then replace the
file in the ‘sources’ folder in Windows 10 USB with the
Windows 11 ISO image.
First, mount the Windows 11 ISO file by right-clicking on it and selecting the ‘Mount’ option from the context menu.
Then, open the mounted Windows 11 ISO image and navigate to the ‘sources’ folder inside it.
Then, locate the
file in the ‘sources’ folder of Windows 11 ISO image and
copy the file using the
Ctrl + C
shortcut. Alternatively, you can also right-click the
file, and select the ‘Copy’ option from the context
Now, plug in the bootable Windows 10 USB drive to your computer, and open it in File Explorer. Then, open to the ‘sources’ folder inside the Windows 10 USB drive.
Finally, paste the
file you copied from Windows 11 ISO image in the
bootable Windows 10 ISO USB drive ‘sources’ folder using
Ctrl + V
shortcut. You can also right-click on any empty space in
the folder, and select the ‘Paste’ option from the
Since the file will be present in the Windows 10 USB drive ‘sources’ folder as well, you’ll get a Replace or Skip Files dialog. Make sure you choose the ‘Replace the file in the destination’ option from the dialog box.
Once the file has been copied to the bootable Windows 10 USB drive, reboot your computer. And then from the ‘Boot device options’ on your Motherboard, boot your system with the bootable Windows 10 USB drive.
Note: Do not worry about booting the Windows 10 USB drive. The installer you’re running is of Windows 11 as we copied the install.wim file from the Windows 11 ISO image to the Windows 10 USB drive.
Once your USB drive has booted, you’ll see the option to select and install a Windows 11 version. It’ll also pass the security checks without enabling ‘Secure Boot’ or ‘UEFI’ in BIOS.
2. Registry Hack to Bypass Secure Boot and TPM 2.0 Check in Windows 11 Setup
You can bypass Secure Boot and TPM 2.0 checks during Windows 11 installation by modifying some registry key values on your Windows PC. It’s a pretty simple and harmless hack that you can easily apply to any PC.
To get started, first, press the
keys together on your keyboard to launch the Run box on
your computer. Then, type
and hit enter to launch the Registry Editor on your PC.
In the Registry Editor window, navigate to the following directory:
Then, right-click on any empty area on the right panel, select ‘New’ followed by the ‘Key’ option.
A new Registry key will be added to the left side in
the Registry Editor. Be sure to name the new key
Now, under the ‘LabConfig’ key, create a new DWORD value by right-clicking on the empty space selecting ‘New’ followed by ‘DWORD (32-bit) Value’ option.
Give this value the name
And after that, similarly, create another DWORD value
with the name
Then, double-click on the
key to open the edit box, and input
value in the ‘Value data’ field and then click on the OK
Similarly, edit the
value and input
in the Value data field and hit the OK button.
Once done, close the Registry Editor window and restart your computer for the new Registry key to take effect.
Then, try running the Windows 11 setup by mounting
Windows 11 Preview ISO on your Windows PC. It shall
bypass the TPM 2.0 and Secure Boot checks and let you
install Windows 11 on any old PC.