What does the ACU.exe file do?
The ACU.exe process is also known as Atheros Client Utility or, as the case may be, TRENDnet Client Utility and is a part of Atheros Client Installation Program or, as the case may be, Qualcomm Atheros Client Installation. This software is produced by Atheros Communications (www.qca.qualcomm.com) or, as the case may be, TRENDnet International. An outdated or faulty version of ACU.exe can cause problems for your computer, ranging from slowness to error messages like these:
- Atheros Client Utility has stopped working. Windows is checking for a solution to the problem... (Windows 11, 10, 7)
- Atheros Client Utility has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 11, 10, 7)
- ACU.exe has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module ACU.exe. Read of address 00000000.
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What you should know about ACU.exe Atheros Client Utility
ACU.exe is not part of Windows, but it is important nonetheless. The file ACU.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 474,848 bytes (30% of all these files), 303,104 bytes as well as 6 other variants.
The file was developed by a so-called third party provider - and not by Microsoft. The application does not appear as a visible window, but only in Task Manager. This file has none of the usual file information, such as version number, etc. This particular software is initiated as part of Windows start-up (Registry: MACHINE\Run).
For this reason, 55% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves ACU.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about ACU?
| Konfigurationsprogramm Wireless Karte volker | |
| Atheros Client Utility may be installed under Program Files as part of support software for a wireless network adapter based on an Atheros chipset and may be marketed under any number of brand names. It will be running when your adapter is in use and should show be accessible via a 'WiFi bars'-type icon in the system tray. As such, it is probably required for normal operation of your wireless adapter, and is harmless. For support you need to contact the OEM or vendor of your device, not Atheros. mjb | |
| Used by Atheros Utility (W-LAN) Emil | |
| acu.exe seems to use up a lot of cpu usage and will be causing my pc to slow down avril cunliffe |
Summary: 4 users consider ACU.exe essential and should not be removed. 2 users consider it harmless. source: file.net
How to uninstall Atheros Client Installation Program or Qualcomm Atheros Client Installation
To remove Atheros Client Utility from your computer, please follow the manual instructions below.
- Click the Windows Start Button. You can find it in the lower-left corner of the taskbar.
- Type 'uninstall'.
- Click Add or remove programs.
- Now locate Atheros Client Installation Program or Qualcomm Atheros Client Installation in the list of displayed applications.
- Click the program, and then click Uninstall.
How to check if ACU.exe (Atheros Client Utility) was uninstalled completely
After uninstalling, restart your computer. Then open Windows Explorer and check if a folder with the software name still exists under C:\Program Files. Also, check the Registry for remnants of Atheros Client Utility. To do this, start Regedit, then look under HKEY_LOCAL_MACHINE > Software for: Atheros Client Utility or the name of the producer. Keep in mind that only a computer professional should delete entries in the Windows Registry directly.
Last but not least
If Windows is not working properly, startup is slow, or ACU.exe is causing problems, a good Windows diagnostic tool may help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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