acpials.sys Informations - Download and Fix

Sometimes Windows system displays error messages regarding corrupted or missing acpials.sys files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent acpials.sys file can therefore effect in failed execution of the started process.

acpials.sys file ACPI ALS Sensor Lower Filter Driver. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of acpials.sys related errors on your device. You can also download acpials.sys file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download acpials.sys

4.1 List of acpials.sys file versions

File info

General information
Filename	acpials.sys
File extension	SYS
Description	ACPI ALS Sensor Lower Filter Driver

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common acpials.sys file related problems

There are various types of errors related to acpials.sys file. acpials.sys file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to acpials.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

acpials.sys is corrupted
acpials.sys cannot be located
Runtime Error - acpials.sys
acpials.sys file error
acpials.sys file cannot be loaded. Module was not found
cannot register acpials.sys file:
acpials.sys file could not be loaded
acpials.sys file doesn't exist

acpials.sys

Application could not be started because acpials.sys file is missing. Reinstall the application to solve the problem.

Problems related to acpials.sys can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing acpials.sys file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix acpials.sys errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

acpials.sys file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with acpials.sys file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to acpials.sys file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of acpials.sys or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to acpials.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the acpials.sys file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the acpials.sys file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the acpials.sys file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace acpials.sys file

The last solution is to manually download and replace acpials.sys file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded acpials.sys file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of acpials.sys file example directory paths.

Windows 10: C:\Windows\System32\DriverStore\FileRepository\sensorsalsdriver.inf_x86_3b83738cd75e3a8e\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\sensorsalsdriver.inf_x86_dbaa4c47965285d2\
Windows 8: 1: C:\Windows\System32\DriverStore\FileRepository\sensorsalsdriver.inf_x86_dbaa4c47965285d2\
Windows 7: ---

If the steps did not solve your acpials.sys file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename acpials.sys

System Windows 10

File size 8192 bytes

Date 2017-03-18

Download

File details
	MD5	5fc61cafdbe5c0b13e1fee0a3694b37d
	SHA1	35a625ec1b935a153919af176741c5394a1d797c
	SHA256	e15e1ee583745171af70757e201d2d0fed4d3369b52db00aa74e7bd727ae6a0c
	CRC32	07b82e64
	Example file location	C:\Windows\System32\DriverStore\FileRepository\sensorsalsdriver.inf_x86_3b83738cd75e3a8e\

Filename acpials.sys

System Windows 8.1

File size 7680 bytes

Date 2014-11-21

Download

File details
	MD5	f4a9c183620c0fc0f7e9a0aa9101ec60
	SHA1	8755598d4eed98899e30654e28993a10377ec640
	SHA256	e8151b605b73e57482a59311891776e62dc5feed6bf7ca424482fe373daaaeec
	CRC32	ab47e352
	Example file location	C:\Windows\System32\DriverStore\FileRepository\sensorsalsdriver.inf_x86_dbaa4c47965285d2\

Filename acpials.sys

System Windows 8

File size 7680 bytes

Date 2012-07-26

Download

File details
	MD5	98726d64348bbe6e200fa18da7d38932
	SHA1	28ab2904e833204279c31ccef5da86aa7b580593
	SHA256	8308349103aa3610e209758d43888ab31671a814d2197cccab5abeeb173a9526
	CRC32	ae6cfe32
	Example file location	1: C:\Windows\System32\DriverStore\FileRepository\sensorsalsdriver.inf_x86_dbaa4c47965285d2\

Filename acpials.sys

System Windows 7

File size 9728 bytes

Date 2009-07-14

Download

File details
	MD5	12c5274cd87449a2a37a607cdb321922
	SHA1	26afd526014cfcbb8d8dd6f32baa43f10ff710f8
	SHA256	50fa524e66a8fa04037dc954d3ab5383c633898f111a3b7488630b649b897370
	CRC32	abc9722f
	Example file location	---