Logitech G603 LIGHTSPEED Frequently Asked Questions Manual page 5

6. Click Next. This should update back to Microsoft's standard drivers.
Update to latest Logitech Audio Driver:
1. On the same device in Device Manager, right-click on Properties and then click the
Driver tab.
2. Click Update Driver > Browse my computer for driver software.
3. Click the Browse button to the right of Search for drivers in this location:
Navigate to: C:\ProgramData\LGHUB\depots\2xxxx\driver_audio\ (note that although
the five-digit number might be different, you are looking for a folder containing the
driver audio folder).