Solve Acs.exe Problems – How to Fix Acs.exe Errors on Your Computer?

Have you encountered acs.exe errors on the computer? It may display error messages during startup or shutdown and cause high CPU utilization. If you are facing these errors but don’t know how to deal with them, read this post and follow the instructions to fix acs.exe errors.

What is acs.exe?

It is the Atheros Configuration Service (ACS) from company Atheros. It is installed alongside Atheros Wireless LAN and provides additional configuration options for these devices. The service is responsible for communication with drivers, anti-malware checks, rules autocreation, updates downloading and so on. You can find this process on many computers with Atheros wireless, as well as in the drivers of any wireless cards that use the Atheros chipset, such as D-Link, Netgear, and Linksys cards. Usually, it is located in the C:\Windows\System32 folder.

What are the common errors?

One of the common problems is that the acs.exe application errors occur after driver upgrade. If you upgrade Atheros driver and client tool from HPs website, you may get the application error during startup and receive an error message saying that the process has encountered a problem and needed to close during shutdown.

Another problem is that the process may cause high CPU utilization on your PC. Sometimes, the process may take up nearly 80 percent of CPU and lead to poor computer performance.

What may result in the problems?

1. If the service is damaged or the updated drivers contain an error, the problems mentioned above will occur.
2. If there are virus infections on your computer, the errors also appear. The viruses, Trojans, spyware or malware may damage the files and process on your computer and cause the programs unable to run properly.
3. There are registry errors on your computer.

How to fix acs.exe errors?

Solution1. Reinstall the ATheros drivers and ATheros Client utility.

As the process is part of the part of the Atheros 802.11b/g WiFi connectivity driver, you can reinstall the drivers and the Client utility to fix the error. Follow the solutions below to uninstall the drivers.

For Windows 7/Vista, click Start, click Control Panel, and clickUninstall a Program under Programs.

Select the ATheros drivers and ATheros Client utility from the list of the all programs installed on your computer, and then click theUninstall to uninstall them.

For Windows 8: Press the Windows Key, or hover the cursor in the bottom-left corner of the screen until a small image of the Start Screen appears, then click on the icon to toggle over to the Start Screen.

Locate the application you would like to uninstall and right click on the icon. A check-mark will appear in the right corner to indicate an application has been selected. Click Uninstall on the toolbar that appears at the bottom of the screen.

The Programs and Features window will open. Make sure the correct application is highlighted then click Uninstall.

After having completely removed the drivers, reinstall them and then restart your computer.

Solution2. Scan your computer with antivirus software.

In case the error is caused by the cyber threats, such as the Trojans, worms, spyware or malware, you need to run the antivirus program to perform a full scan of your computer system. Once any virus infection is detected, delete it at once and reboot your computer. It is necessary to keep your antivirus software up-to-date because hundreds of new viruses or the variants are generated every day. It is a good idea to keep the security software running in the background.

Solution3. Fix registry errors.

The registry is a database that contains the data of the applications, hardware and other information. If there is something wrong with the system registry, many unexpected computer problems may appear. Acs.exe error may be caused by the invalid or obsolete registry entries. So you need to clean the registry errors. It is suggested that you use a professional registry cleaning tool to deal with the registry issues.

Therefore, when you are facing acs.exe high CPU usage or application errors, try the solutions mentioned above to solve the problems. If you suspect that the errors are caused by registry issues, please download and install a professional registry cleaning tool to fix the Windows registry automatically and safely.