If you’re already running one of those, 3DMark should chirp that an update is available when you start it. It only works on the Advanced ($24.95) and Professional (don’t ask) editions. The test won’t work on the free basic version of 3DMark. The next step is to make sure you own and have 3DMark installed.

Just push Check for Updates after changing the frequency to Fast and you get the latest update as well as the correct DX12 drivers for your GPU. DX12 card driver support on Windows Update currently supports Nvidia’s Maxwell and Kepler cards (GeForce 600-series and up), AMD’s GCN-based cards (Radeon 7000-series and R-series) and Intel Haswell parts. If you have a DirectX 12 capable video card or integrated graphics, Windows Update should also install the latest DX12 capable driver.

This may take some time depending on your Internet connection and a reboot may be required. Your system should download the latest Build and install it.

Go back to Update & Recovery and select Check for Updates. You may need to set Windows Update frequency to Fast to get the latest Win10 Build if your box doesn’t already have it.

Directx 12.1 download