I'm facing a issue while upgrading my PC to windows 11. It says that I require TPM 2.0 in order to complete the installation of Windows 11. I'm not much of geeky guy so I don't know what is this so I looked up on the internet to buy computer components to fix TPM 2.0 issue. I'm using 4th gen Core i5 processor so should I go for 7th or 8th Gen Core Processors?