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How to Install Windows 11 on Legacy Bios Without Secure Boot or TPM 2.0

Do you want to install Windows 11 on old BIOS without Secure Boot and TPM 2.0? And here is a 100% effective solution.

Instruction to install windows 11 on PC with fixing TPM 2.0 requirement error

Windows 11 Preview build has been leaked, a lot of users want to experience this version, and yet installing Windows 11 problem requires “Secure Boot” and “TPM 2.0” to enable on PC and the process is quite simple to enable both of these options if you are in BIOS “UEFI” Mode. However, on the BIOS mode, it’s more difficult.

Moving to UEFI from Legacy BIOS mode can completely wipe out all your drive, even switching to UEFI doesn’t guarantee the installation of Windows 11, as many older PCs haven’t got the option to enable TPM 2.0 in the BIOS.
There’s no need to get nervous Don’t worry, we will give you a perfect solution to install Windows 11 on Legacy BIOS.

Settlement condition:

– Windows 11 ISO Image
– Windows 10 bootable USB drive (-> instructions)
– A computer running windows 10
– 8GB USB Flash Drive

INSTALL WINDOWS 11 ON LEGACY BIOS WITHOUT SECURE BOOT AND TPM 2.0

The workaround to install Windows 11 on Legacy BIOS is really easy as long as you meet all the prerequisites mentioned above.

Basically, you need a USB windows 10 drive which is able to start and then replace install.wim in the “sources” folder in the Windows 10 USB using install.wim from 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.

Next, open Windows 11 ISO which was mounted and navigate to the “sources” folder inside it.

Then, locate the install.wim file in the ‘sources’ folder of Windows 11 ISO image and copy the file using the Ctrl + C shortcut. Alternatively you also can right – click on the file and select the ‘Copy’ option from the context menu.

Now, plug the bootable Windows 10 USB drive into your computer and open it in File Explorer. After that, open the ‘sources’ folder inside the Windows 10 USB drive.

Finally, paste the install.wim file that was copied from Windows 11 ISO in the bootable Windows 10 USB drive ‘sources’ folder using the Ctrl + V shortcut. You can also right -click in any empty space in the folder and select the “paste” option from the available options.

Because the file will be in the ‘sources’ folder of the USB Windows 10 drive, you will receive a Replace or Skip file dialog box. Ensure that the ‘Replace’ option is selected from the dialog box.

After copying the file onto the bootable USB Windows 10 drive, restart your computer. And then, from the ‘Boot device options’ on your motherboard, restart your system with the bootable USB Windows 10 drive.

Note: Do not worry about turning on the USB Windows 10 drive. The running installation belongs to Windows 11 as you copied the install.wim file from the Windows 11 ISO image intothe USB Windows 10 drive.

Once your USB drive has booted, an option will be shown up to install a Windows 11 version. It will also pass the security checks without enabling Secure Boot or UEFI in the BIOS.

REPLACING SOLUTIONS DON’T WORK FOR OLD BIOS

Since many people try to install windows 11 on Legacy BIOS, there is plenty of workarounds floating on the internet. Therefore, a list of popular points that don’t work when installing windows 11 on Legacy BIOS is compiled.

– Copying the “sources” folder from Windows 10 ISO image file and pasting it into Windows 11ISO image file.

– Copying the appraiserres.dll file from the ‘sources’ folder of the Windows 10 ISO image file and pasting it to the ‘sources’ folder of Windows 11 ISO image file.

– For some users, the solution is given in the bootable instruction to cleanly install and you may not receive an upgrade option that allows you to keep all your files and folders leading to completely clear data on the Windows drive.

Now you can launch your Windows 11 installation from your Legacy PC system safely.

Best of luck!