If your PC meets the minimum requirements for Windows 11, but the update is not showing in the settings, there could be several reasons behind this issue. Here are a few possible explanations:

Update rollout schedule: Microsoft typically rolls out major updates like Windows 11 gradually over time. They prioritize certain devices based on hardware compatibility and other factors. If your PC meets the requirements, but you still don't see the update, it could be that your device hasn't been included in the initial rollout phase. In such cases, you may need to wait for the update to become available for your specific device.

Compatibility issues: While your PC may meet the minimum requirements for Windows 11, there could be specific hardware or driver compatibility issues that prevent the update from being offered to your device. Windows 11 has stricter requirements compared to previous versions, such as the need for a compatible TPM version 2.0 and Secure Boot. If any of these requirements are not met, it could be the reason why the update is not showing. In such cases, you may need to check for updated drivers or firmware from your device manufacturer to ensure compatibility.

Windows Update settings: It's possible that your Windows Update settings are configured in a way that is preventing the detection of the Windows 11 update. Ensure that your Windows Update settings are set to automatically download and install updates. You can check this by going to Settings > Windows Update > Advanced options and ensuring that the "Receive updates for other Microsoft products" option is enabled.

Insider Preview builds: If you were previously part of the Windows Insider Program and had been using Insider Preview builds of Windows 11, there could be complications in transitioning to the stable release. In such cases, it's recommended to opt out of the Insider Preview program and perform a clean installation of the stable version of Windows 11.

Regional availability: The availability of Windows 11 updates may vary by region. Microsoft may roll out updates to specific regions or countries first before expanding to others. If your region is not currently included in the initial rollout, you may need to wait until the update becomes available in your area.

Compatibility evaluation: Windows 11 undergoes a compatibility evaluation process on each device to ensure a smooth and stable experience. If your PC has a pending compatibility evaluation or there are known compatibility issues with specific hardware components, it may delay the update from appearing in your settings. Microsoft may release updates or fixes to address these compatibility issues over time.