Microsoft therefore excludes quite a few systems based on somewhat old processors.
When Microsoft officially introduced Windows 11, the firm indicated that one of the eligibility criteria for the new OS was TPM technology (Trusted Platform Module) 2.0. Unfortunately, this prerequisite may well exclude many DIY PCs currently in use. Indeed, in the list of CPUs supported by Microsoft, the Ryzen 1xxx as well as the Intel Core released before those of 8th generation (Coffee Lake) do not appear.
The Trusted Platform Module (TPM) plays a role in authenticating and encrypting certain data. Theoretically mandatory on all Windows certified systems since 2015, the TPM is not always activated by default or present on all machines, especially those from the DIY market. To check if your system has it, enter “tpm.msc” in the Windows search box; if the above message appears, you will need to take a tour of the security related BIOS settings to see if it is possible to enable TPM. You can also test the compatibility of your machine with Windows 11 via a utility on the Microsoft site (at the bottom of the page).
Some rare exceptions
As mentioned above, PCs equipped with a somewhat old but still high-performance processor will not be entitled to Windows 11. Indeed, the list unveiled by Microsoft stops at Coffee Lake processors (8000 series) on the d side. ‘Intel, 2nd generation Ryzen from AMD’s side: the popular Ryzen 1xxx or Intel chips such as Core i7-7700K will therefore not allow you to take advantage of Windows 11.
Microsoft has clarified that installing Windows 11 on a system without TPM would require special approval. Concretely, the company would deliver the sesame only to “OEM for Special Purpose Business Systems, Custom Orders and Customer Systems with a Custom Image”. Now, nothing prevents the Redmond firm from reviewing its plans before the widespread launch of Windows 11.
Sources : Tom’s Hardware US, DSOGaming