rtkngui64.exe is a application which is most likely legit. So, if rtkngui64.exe is on your computer, it is most likely ok, and will NOT cause problems. Even if your PC is clean, it is still recommended to run a good antivirus with a good detection rate, in order to defend your system against potential security problems.
Usually, this program is located in C:\Program Files\Realtek\Audio\HDA\RtkNGUI64.exe.
The MD5 checksum for this file is 2f3a21f6cbc9b4cbccb73fc2deaec453.
This application is NOT a Windows service. This is good.
64-bit code has been detected. This application can use the full power of a modern computer processor.
The description written in the program is Realtek HD Audio Manager.
File version 1.0.662.0.
Author Realtek Semiconductor.
Legal copyright notice 2017 (c) Realtek Semiconductor. All rights reserved..
This program does NOT have visible elements of user interface. This is usually a bad thing.
Some insecure functions of Windows have been used, such as functions for tapping the keyboard. We advise you to read more about this program.
rtkngui64.exe has a digital signature. Today the large majority of serious programs are digitally signed.
The digital signature extracted from rtkngui64.exe verifies as ok. This is excellent.
Digital certificate name: Realtek Semiconductor Corp.
Certificate's issuer name: DigiCert EV Code Signing CA
This executable is registered to start when the computer starts. Yes
It has an uninstall routine, which is a good sign. si are uninstall.