For Windows 8.1 update, please perform the following steps:
Run ThinkVantage System Update and update all your drivers and BIOS to latest level
Run Microsoft Update to get the latest patches. If this step is not run, you may not see the windows 8.1 update in the store
Download and run the Microsoft 8.1 update
Run ThinkVantage System Update in the newly updated Microsoft 8.1 environment to pick up any unique 8.1 drivers
After the update process, only the uniquely identified Windows 8.1 drivers in the table below may need to be installed. Any Windows 8.0 drivers remaining on your system after the update are compatible with Windows 8.1. Additionally as part of the Windows 8.1 process, Microsoft will automatically install any needed inbox/built-in drivers.
Click the category below to quickly jump to the driver you need, then click the driver's title for more information on how to obtain the file.