No Audio Output Device is installed. (Asus U41SV)

I am using Asus U41SV notebook, I have just change from MBR legacy mode to GPT partition with uefi enabled in windows 10. The installation process is a success, however the audio service was gone. Previously in legacy mode, the audio service is working fine, but when it comes to gpt, it just ends up like this. I need help in fixing this audio issue. Here is a picture of the error in the device manager section.

Could you clarify this:
"The installation process is a success"

That could mean that you installed Windows on a clean GPT disk, or it could mean that the conversion process (from MBR to GPT) was successful.

Have you tried installing the most recent audio driver for your device?

Asus usually uses Realtek. If so you can find a link to the latest driver at the top of this forum.

If you installed a driver already, or if after installing one now it doesn't change anything, then try going into Device Manager and uninstalling the Audio device. Uninstall the drivers too when asked. Then restart the PC and the device will be reinstalled. See if it will start then.

Installed the drivers doesn't work. Uninstall and when notebook restart, check for updates in windows updates, doesn't work also. Under the sound, video and game controller drop down list, realtek audio doesn't show up after installed.

Update: I ran a Intel Chipset Driver Utility, it found me a new chipset update, I have installed it, and try installing the realtek again, it still didn't work.

8086 is Intel, not Realtek

The chip comes up as "4 Mbit ARCnet"

Do you see an Intel Audio driver from the manufacturer?