If you're planning on installing Windows 11, you'll need to have a PC with TPM 2.0 enabled. Here's how to turn it on.

Unlocking the TPM 2.0 module allows you to install Windows 11 using Windows Update, which should allow you to upgrade without wiping any apps or data.

The TPM is sometimes a chip that’s built directly into the hardware of your device, or—more commonly for consumer PCs—a type of firmware your processor supports.

If you still have a device running Windows 10 but doesn't meet the hardware requirements for Windows 11, you can still upgrade to the latest version of the operating system using an in-place upgrade ...

If you see The PC must support TPM 2.0 error while upgrading to Windows 11 enable TPM 2.0 or bypass TPM requirement. On VMs it may not work.

TPM 2.0 hardware in consumer-level motherboards and prebuilt PCs is much less common. Many motherboards have onboard headers for TPM modules that have gone unused until now.

My module is TPM 1.2, Asus makes 2.0 compliant ones now and apparently Bitlocker doesn't use RSA Keys when a TPM 2.0 is available. If so, how do I do the upgrade without locking myself out of my data?