Windows 11 refusing to install on hardware it can absolutely run on.
RUFUS is not only a great tool with which to build your USB installer (it has an option to download the correct and latest ISO directly from Microsoft), but in the subsequent steps it also asks if you want to modify the installer in some pretty useful ways. Such as bypassing a Microsoft account in favour of a local account, and neutering some of the more recent requirements. IIRC the TPM 2.0 requirement can still be nerfed.
RUFUS is not only a great tool with which to build your USB installer (it has an option to download the correct and latest ISO directly from Microsoft), but in the subsequent steps it also asks if you want to modify the installer in some pretty useful ways. Such as bypassing a Microsoft account in favour of a local account, and neutering some of the more recent requirements. IIRC the TPM 2.0 requirement can still be nerfed.