Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for Topfield Co. In the results, choose the best match for your PC and operating system. Altair into the search box above and then submit. If the driver listed is not the right version or operating system, search our driver archive for the correct version. After you complete your download, move on to Step 2. To get the Altair driver, click the green download button above. How to Update Altair Device Drivers Quickly & Easily Step 1 - Download Your Driver