windows 11 tpm 2.0

I have been informed by the Microsoft update software that my PC needs to add TPM 2.0 and a Gen 8 or higher CPU in order to update to Win11. The first question I have is, will adding and enabling TPM 2.0 make any data on the current system unavailable? Sorry if this sounds stupid but it does...

I downloaded the little Windows tool, and it told me my PC is not compatible with Windows 11, but it's basically because of the lack of the TPM 2.0 module. Specs: CPU: Intel Core i7 8700k Mobo: Gigabyte Z370 Aorus Gaming Ram: 32gb DDR4 3200 I'm thinking about upgrading my whole system (Ryzen 7...