The primary source for all software and firmware is the Official HP Support Page . HP Thin Client OS Update / Reinstall - Spiceworks Community
, but you must ensure the TPM 2.0 and Secure Boot are enabled in BIOS. Download the Windows 11 drivers from HP’s site (use Windows 10 drivers – they are fully compatible). hp t630 thin client drivers
If you have installed a standard version of Windows 10 or 11 on your t630, you might not need to download anything manually. The primary source for all software and firmware