Need help to install Windows 11 without TPM 2.0 and Secure Boot

Idea: Clone Windows drive on a spare disk as backup. Copy your files on E drive on another disk. Disconnect the original Windows drive, wipe E and clean install Windows 11. If you need a fully working system while you install programs on the new installation, turn off the computer, disconnect the disk and connect the original disk temporarily. You could also dual boot with both disks connected and use the boot menu (F12 usually) but is more risky. Scan all your backup before transferring data to the new installation.

vipergg said:

This method does work for most . Just did an old 2014 HP laptop that started with Win 8.1 . I upgraded to Win 10 and then not too long ago to Win 11 . This has unsupported CPU and no TPM . The upgrades went fine albeit it was a slow process which took about 2 hours . Only 8 gig of ram and runs on a HDD . 24H2 loaded right up though with no errors and nothing showing in device manager that it wasnt working correctly . Only had it on the laptop a few hours but so far see no glitches on a 12 year old computer with no TPM or a supported CPU .

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My non-compliant 2014 Dell laptop without a TPM has been working fine for over a month on 24H2 using the command setup.exe /product server I posted above

My main PC (2nd system specs) and my Fujitsu Stylistic Q702 hybrid tablet/laptop both unsupported run 24H2 without issues. Only the bug of the search icon disappearing (using both Open Shell and Explorer Patcher) and to get it back I switch to search box and back to search icon. Also the custom taskbar color I have set in Open Shell reverts to the Windows default color when I click on the search icon. It usually returns to the custom color if I close the search window. Apart from these minor bugs, I did not have any issue.

First things first, you gotta realize that Microsoft designed Windows 11 with specific hardware requirements like TPM 2.0 and Secure Boot for a reason—security and performance. Skipping these can lead to stability issues down the line.

If you're thinking about upgrading from Windows 10 using the standard installation method, you might hit a wall. Make sure you’re ready to create a bootable USB drive or use the Windows 11 ISO and install from scratch.

To bypass the TPM and Secure Boot checks, you’ll often need to modify the Windows Registry. If you mess this up, you could easily brick your PC. Always back up your registry before making any changes.

You modify the Registry of the WinPE environment for a CLEAN installation. This won't affect your system, is not the standard Windows Registry. The Registry hacks to UPGRADE from 10 or 23H2 to 24H2 are no longer necessary, just create a Windows 11 Setup USB with latest Rufus, so you don't risk screwing your system. Also as I have said numerous times, using Windows 10 64-bit is as secure as using Windows 11 with the same drivers and the same configuration (UEFI mode, TPM 2.0, Secure Boot or Legacy BIOS mode with neither). Installing Windows 11 won't make the computer more secure by magic, unless you do a clean installation with enables some different default settings than upgrading from 10. Similarly, staying with Windows 10 won't make your computer less secure, you can always enable UEFI mode and Secure Boot and TPM, if they are available.