To find the newest driver, you may need to visit the Toshiba website. It is a software utility which automatically finds and downloads the right driver. Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for BIOS Satellite A135-S4527. In the results, choose the best match for your PC and operating system. Enter BIOS Satellite A135-S4527 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 BIOS Satellite A135-S4527 driver, click the green download button above. How to Update BIOS Satellite A135-S4527 Device Drivers Quickly & Easily Step 1 - Download Your Driver