Why can't I update my Windows 10 to 11 on my pc?

Flyby11 is a streamlined, open-source tool designed to bypass Microsoft's strict hardware requirements for Windows 11, such as TPM 2.0, Secure Boot, and specific CPU generations. You can use this free app if you can't update Windows 10 to Windows 11 for unsupported hardware.

It works by tricking the installation process into believing it is a Windows Server setup, which has less stringent compatibility checks, while still installing the standard version of Windows 11. This method is designed to perform an "in-place upgrade," meaning your existing apps, settings, and personal files remain intact throughout the process.

Step 1: The tool will automatically check if your CPU supports basic instructions like POPCNT and SSE4.2; if these pass, you have a high probability of success.

Step 2: Once the Windows 11 ISO is ready, the tool will mount it and launch the setup. You may see "Windows Server" branding during the initial screens; this is normal and necessary for the bypass.

Step 3: When the installer prompts you, ensure you select the option to "Keep personal files and apps" to avoid losing any data.

Step 4: Follow the remaining on-screen prompts. Your PC will restart several times during the process.

Flyby11 provides a simplified way to update Windows 10 to Windows 11 25H2 on unsupported PCs. While it successfully enables Windows 11 on unsupported PCs without losing data, users should be aware that Microsoft may block future major feature updates on such systems, and stability isn't officially guaranteed.