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What is acpiex?

acpiex.sys is a system file associated with the Microsoft Windows operating system. It is a part of the Advanced Configuration and Power Interface (ACPI) subsystem, which is a key component of the operating system's power management and hardware configuration capabilities.

The acpiex.sys file is responsible for managing power usage and hardware configuration within the Windows operating system. It helps the system to interact with the hardware components, enabling the operating system to control power usage by the hardware, manage system cooling, and perform other hardware-related tasks. This file is crucial for the smooth operation of the Windows operating system.

As a critical system file, acpiex.sys should not be removed. Deleting or modifying this file could lead to system instability or even prevent Windows from booting up. If you suspect that the acpiex.sys file is causing problems on your system, it's recommended to use Windows System File Checker or a similar tool to check and repair system files, rather than attempting to delete or manually modify the file.

Malware can sometimes disguise itself as a legitimate system file like acpiex.sys. If you have reason to believe that the acpiex.sys file on your system is malicious, you should run a full system scan with a reliable antivirus program.

Run a free scan to check for acpiex drivers in need of updating

Acpiex.sys file information

The process known as ACPIEx Driver belongs to software Microsoft Windows Operating System by (www.microsoft.com).

Description: The original acpiex.sys is an important part of Windows and rarely causes problems. Acpiex.sys is located in the C:\Windows\System32\drivers folder. The file size on Windows 10/11/7 is 91,040 bytes. file.net/process/acpiex.sys.html 
The driver can be started or stopped from Services in the Control Panel or by other programs. Acpiex.sys is a Windows system file. Acpiex.sys is digitally signed. The file is a trustworthy file from Microsoft. The service has no detailed description. The program has no visible window. acpiex.sys appears to be a compressed file. Therefore the technical security rating is 0% dangerous.

Uninstalling this variant: If problems with Microsoft Windows occur, you can also do the following:

Recommended: Identify acpiex.sys related errors

Important: Some malware disguises itself as acpiex.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the acpiex.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

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Best practices for resolving acpiex issues

A clean and tidy computer is the key requirement for avoiding problems with acpiex. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.

To help you analyze the acpiex.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.



Other processes

acpiex.sys [all]