How to Stop Aacenter.exe in Windows Vista

Aacenter.exe is a service that comes with the Asus motherboard and runs the Asus ACPI Center. For background information, ACPI is the acronym for Advanced Configuration and Power Interface. This service was co-developed by three major companies; Intel, Microsoft and Toshiba. What the Asus ACPI Center does is basically manages how the operating system handles power related activities. Only devices that need power are supplied with power. Essentially, what the ACPI Center does is controls the flow of communication regarding power between your computer’s hardware (hard drives, optical drives, etc) and software (operating system, applications, etc).

File Information

Some users have expressed concerns that the aacenter.exe file is a virus, but the explanation above should settle these fears.  However, if you find a suspicious file that is labeled as aacenter.exe that is not located in the correct place, then you should be cautious. By default, aacenter.exe is located in a subfolder within C:\Program Files. You must also check the file size. The most common size of the file on Windows XP is 603,648 bytes. You may also find it in 597,504, 582,144, 591,872, 591,360, 593,920, 614,912, 598,016, 613,376, 615,424, 604,672, 609,280, 610,304, 581,632, and 610,816 bytes sizes.  The program also adds the HKey_Current_User\Software\ASUS\AASP entry in the registry. If the file is located elsewhere or it has a different file size, it may very well be malware posing as this executable. An example of where this malicious file could be hiding is C:\windows or in the C:\windows\system32 folder. If this is the case, you must immediately scan your PC with the help of efficient and updated antivirus and antispyware tools to detect and remove the malware.

Aacenter.exe Problems

A common problem reported by several users is that their computer stops working properly or slows down considerably when this process is running. Some are of the opinion that the file consumes a large chunk of RAM. Some also claim that the Asus processes, aacenter.exe and asloader.exe cause a hard crash; however, there has been no other information to support this claim.

The primary complaint against aacenter.exe is that the process eats up a lot of CPU power. Some have even put the number at 50%. No wonder then that users are scrambling around trying to find a way to fix this issue.

Aacenter.exe isn’t really an error at all so there is no repair method, but the file is proving to be a nuisance to quite a lot of computer users so a solution is needed.

Fortunately, several solutions exist.  Choose the one that works best for you.

Solution 1: Disable Aacenter.exe from Loading at Startup

This seems to be the most popular solution. Aacenter.exe is configured as a task. Therefore, to remove the program from Startup, you have to disable it as a task.

Here are the steps:

  1. Open Start menu and point to All Programs.
  2. Now, go to Accessories and then move to System Tools.
  3. Select Task Scheduler.
  4. In the Task Scheduler window, open the Asus folder To view Asus related tasks.
  5. Here, right-click on ASUS ACPI Service Provider and ASUS RegRun Loader one-by-one and then select Disable.

Solution 2: Rename the Aacenter.exe File

To rename the file, navigate to the C:\program files\ASUS\AASP\1.00.32 folder and rename the file from aacenter.exe to to render the file invalid and stop it from running. By renaming, you ensure that the program stops working but remains on your system ready to be called into action when needed.

Solution 3: Load the Aacenter.exe and Asloader.exe Under SYSTEM Account

Another solution that has been proposed to remove aacenter.exe from startup is to load aacenter.exe as well as asloader.exe drivers under SYSTEM account. The downside of doing this is that when you make this change, individual user settings are no longer possible.

Solution 4: Remove the File from Your Computer

This is the most drastic solution of all. You should remember that the ACPI Center manages power flow and removal may cause harm to your computer. This is the reason why, you must avoid opting for this solution.

Many exe and other program files may generate errors if the Windows registry is damaged or corrupt. This is the reason why, it is recommended that you use a good registry tool, such as RegServe, to perform a thorough registry scan and repair any detected errors.