ISSUE: After uninstalling an NVIDIA graphics driver on Hybrid graphics notebooks while in save power mode, the NVIDIA HD Audio driver cannot be re-installed.

EXPLANATION: In Hybrid save‐power mode, after transitioning to the integrated graphics, the NVIDIA driver disables the HD audio controller. The NVIDIA installer will not show the HD audio driver option if the HD audio is disabled.

SOLUTION: Before installing the new driver, enable the HD audio device through the Windows Device Manager. This will allow the NVIDIA installer to detect HD audio and install the HD audio driver.

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The NVIDIA HD Audio driver cannot be re-installed.

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