1. In other words, fix the High Definition audio driver cannot start issue can depend on solving the driver compatibility problem. Therefore, if the Realtek or any other HD audio fails to start on Windows 10, it is a good choice for you to refer to this passage.
2. Intel High Definition Audio Driver Problem in Windows 10 Solutions. Here is how to fix Intel High Definition Audio Driver Problem in Windows 10 – Update Intel High Definition Audio Driver Way-1. Step-1: Press Win+X and select Device manager from the list. Step-2: Locate Sound, video and game controllers and double click on this one to expand.
3. Nov 06, 2017  Problem with High Definition Audio - Realtek HD Audio - Code Hi, I have several computers of differents (HP, Toshiba, etc) and It happens the same problem. The audio device has an exclamation mark in Device Manager.
4. Installing the Microsoft High-Definition Audio Device Drivers. Launch the device manager by searching for “Device Manager” in the start menu. Expand the “Sound, video, and game controllers” node to locate the “Realtek Audio” device, then right-click it and choose “Properties”.
5. Hold the Windows Key and Press R. Type devmgmt.msc and Click OK. From the top toolbar, click Action, and choose Add legacy hardware from the dropdown menu. Follow the wizard to add the Sound, video and game controllers category, as well as the Realtek High Definition Audio Device.

1. High Definition Audio Driver Problem
2. High Definition Audio Controller Error
3. Persistent High Definition Audio Controller Driver Problems

No Audio on Windows 10 iMac (High Definition Audio Controller issues, etc.)

Hello, First of all, I am running Windows 10 on an iMac desktop. I installed with a Windows 10 ISO from USB through El Capitan OS. (NOTE: I kind of ruined the partition on accident and put the full storage to the Windows side during the Windows setup.. I cannot boot Mac by holding option at this time). OKAY, so I have spent the last far too freaking long trying to figure out why the speaker icon at the bottom right hand side of the screen is canceled out. I have tried installing and uninstalling drivers, updating them.. So many different things but nothing seems to work. When I go into Device Manager, the High Definition Audio Controller has a yelloe exclamation point next to it.. I'm not sure if that has something to do with the problem I am having or not. I have tried uninstalling it, getting new drivers.. etc. Nothing seems to work. I feel like I have tried everything. If someone has any insight, it would be greatly appreciated. I have spent way too long on this issue.

After you upgrade your computer to Windows 10, if your RealTek Sound / Audio Drivers are not working, you can fix the problem by updating the drivers. It is possible that your Sound / Audio driver is not compatible with the newer version of Windows.

I am showing how to fix problems solution audio sound in Windows 10. This tutorial sound fix problems solution method solve it Please watch: 'How to fix all sound problems of windows 7, 8, 8 1.

How to Update Device Drivers

There are two ways to update drivers.

Option 1 (Recommended): Update drivers automatically - Novice computer users can update drivers using trusted software in just a few mouse clicks. Automatic driver updates are fast, efficient and elimate all the guesswork. Your old drivers can even be backed up and restored in case any problems occur.

OR

Option 2: Update drivers manually - Find the correct driver for your Sound / Audio and operating system, then install it by following the step by step instructions below. You’ll need some computer skills to use this method.

However, some games may have additional DRM that limits the number of computers the game can be installed on during its lifetime. If you have Steam Guard enabled, Steam may ask you to verify the new location by a code sent to you by e-mail. You just can't play games on both of them at once. Edit: I've been told in the comments that you can now log into same account on multiple computers to use something called In-Home Streaming. But these are not tied to Steam or your user account. Can you download game on two computers.

Option 1: Update drivers automatically

High Definition Audio Driver Problem

The Driver Update Utility for RealTek devices is intelligent software which automatically recognizes your computer’s operating system and Sound / Audio model and finds the most up-to-date drivers for it. There is no risk of installing the wrong driver. The Driver Update Utility downloads and installs your drivers quickly and easily.

You can scan for driver updates automatically with the FREE version of the Driver Update Utility for RealTek, and complete all necessary driver updates using the premium version.

Tech Tip: The Driver Update Utility for RealTek will back up your current drivers for you. If you encounter any problems while updating your drivers, you can use this feature to restore your previous drivers and configuration settings.

High Definition Audio Controller Error

1. Download the Driver Update Utility for RealTek.

2. Double-click on the program to run it. It will then scan your computer and identify any problem drivers. You will see a results page similar to the one below:
   

3. Click the Update Driver button next to your driver. The correct version will be downloaded and installed automatically. Or, you can click the Update Drivers button at the bottom to automatically download and install the correct version of all the drivers that are missing or out-of-date on your system.

Persistent High Definition Audio Controller Driver Problems

Option 2: Update drivers manually

To find the latest driver, including Windows 10 drivers, choose from our list of most popular RealTek Sound / Audio downloads or search our driver archive for the driver that fits your specific Sound / Audio model and your PC’s operating system.

If you cannot find the right driver for your device, you can request the driver. We will find it for you. Or, try the automatic option instead.

Tech Tip: If you are having trouble finding the right driver update, use the RealTek Sound / Audio Driver Update Utility. It is software which finds, downloads and istalls the correct driver for you - automatically.

After downloading your driver update, you will need to install it. Driver updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow. Visit our Driver Support Page to watch helpful step-by-step videos on how to install drivers based on their file extension.

How to Install Drivers

After you have found the right driver, follow these simple instructions to install it.

1. Power off your device.
2. Disconnect the device from your computer.
3. Reconnect the device and power it on.
4. Double click the driver download to extract it.
5. If a language option is given, select your language.
6. Follow the directions on the installation program screen.
7. Reboot your computer.