diff --git a/README.md b/README.md
index ec5cd26..6554e59 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ WARNING: A work in progress...
 
 Prerequisits:
 * Windows 11 Pro or Enterprise
-* Desktop Computer with dedicated NVIDIA/AMD GPU or Integrated Intel GPU - Laptops with NVIDIA GPUs are not supported at this time, but Intel integrated GPUs work on laptops.
+* Desktop Computer with dedicated NVIDIA/AMD GPU or Integrated Intel GPU - Laptops with NVIDIA GPUs are not supported at this time, but Intel integrated GPUs work on laptops.  GPU must support hardware video encoding (NVIDIA NVENC, Intel Quicksync or AMD AMF).
 * Latest GPU driver from Intel.com or NVIDIA.com, don't rely on Device manager or Windows update.
 * Windows 11 ISO [downloaded from here](https://www.microsoft.com/en-us/software-download/windows11)
 * Virtualisation enabled in the motherboard and Hyper-V fully enabled on the Windows 11 OS (requires reboot)