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How to eliminate ACPI driver problems

The ACPI.sys (ACPI driver for NT) file is a Windows driver. Generally, drivers are used by Windows to enable internal components like graphic cards and drives, or external devices, such as printers, backup media or input devices.
Click here to check if you need to update your ACPI driver.

The ACPI.sys process is also known as ACPI Driver for NT or, as the case may be, Microsoft ACPI Driver and is a part of Microsoft Windows Operating System. This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of ACPI.sys can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about ACPI.sys ACPI driver for NT

ACPI.sys is part of Windows. ACPI.sys is found in the C:\Windows\System32\drivers directory. Frequently occurring are file sizes such as 187,776 bytes (57% of all these files), 274,304 bytes or, as the case may be, 265,688 bytes.
If necessary, you can manually stop or start this driver in the Device Manager. The Device Manager can be found in Windows Control Panel under Hardware and Sound/Devices and Printers/Device Manager. The driver facilitates access to your computer's hardware and accessories. This process does not appear as a visible window, but only in Task Manager. For this service - unlike Windows' own system services - there is no good description available. The original file by Microsoft is digitally signed. So please check the file on your computer. ACPI.sys appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 3% 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 ACPI.sys. 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 ACPI?

makes our servers crash
Steven
automatica configuration power interface
sugarfooter2
Belongs to Microsoft Windows Operating System. ACPI Driver for Windows NT.
Jess
working of this file
Automatic Configuration Power Interface is a driver which will attempt to throttle CPU usage when temperatures get to high (and other power management operations) (further information...)
Chuck

Summary: 12 users judge ACPI.sys to be an essential file that should not be touched. 5 users consider it harmless. For this reason, one user has already deleted ACPI.sys. source: file.net

How to uninstall the program

To remove ACPI driver for NT from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate the program in the list of displayed applications.
  5. Click the program, and then click Uninstall.
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ACPI.sys ACPI driver for NT fix

How to tell if ACPI.sys (ACPI driver for NT) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of ACPI driver for NT. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for ACPI driver for NT or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or ACPI.sys is causing problems for you, a good Windows diagnostic tool may very well 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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