84,488,480 programs installed

Should I remove Ambient Light Sensor?

What percent of users and experts removed it?
8% remove it92% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #25,304
United States Rank #18,099
Reach 0.0068%


1.0.10 18.52%
1.0.8 3.70%
1.0.7 77.78%

Other programs by Dell

Ambient Light Sensor

What is Ambient Light Sensor?  (from Dell)

The Ambient Light Sensor (ALS) automatically adjusts the brightness of the system's LCD panel based on surrounding light levels. Dellâ„¢ portable systems equipped with the ALS have a small square window located on the bottom edge of the LCD panel. The ALS will increase the brightness of the LCD panel when used in a brigh...  Read more


Ambient Light Sensor is a software program developed by Dell. It is typically pre-installed with most new Dell computers. The most common release is 1.0.7, with over 98% of all installations currently using this version. Upon being installed, the software adds a Windows Service which is designed to run continuously in the background. Manually stopping the service has been seen to cause the program to stop functing properly. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. The programs's main executable is AlsSvc.exe and has been seen to consume an average CPU of less than one percent, and utilizes about 2.92 MB of memory. The setup package generally installs about 1 files and is usually about 555.77 KB (569,112 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows Vista (SP2). While about 66% of users of Ambient Light Sensor come from the United States, it is also popular in Poland and United Kingdom.

This program is pre-installed on the PC

Pre-installed software such as this is usually included by default on the manufacturer's PC. Many OEM (original equipment manufacture) software that is included with a new PC is useful and in many cases required for the PC to function properly as in the case of various software drivers. However, some pre-installed software is optional and can be safely removed.

Program detailsProgram details

URL: www.dell.com
Installation folder: C:\Program Files\Dell\Ambient Light Sensor\
Uninstaller: MsiExec.exe /X{5AF4F4C5-C71C-418F-B0B1-3903A345BD71}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 555.77 KB
Language: English (United States)

Program filesFiles installed by Ambient Light Sensor

Program executable:AlsSvc.exe
Name:Dell ambient light sensor service
Path:C:\Program Files\Dell\Ambient Light Sensor\AlsSvc.exe
  • AlsSvc.exe - Dell ambient light sensor service

Program behaviorsBehaviors exhibited

  • AlsSvc.exe runs as a service named 'Ambient Light Sensor' (alssvc64) "Interface between Windows and your system's Ambient Light Sensor control.".

Program resource utilizationResource utilization averages

Memory:2.92 MB
21.09 MB average
Total CPU:0.0011397723%
0.031193% average
Kernel CPU:0.00072511%
0.016088% average
User CPU:0.00041466%
0.015104% average
CPU cycles/sec:61,812
8,062,084 average
I/O reads/min:71 Bytes
435.61 KB average
I/O writes/min:0 Bytes
105.02 KB average

How do I remove Ambient Light Sensor?

You can uninstall Ambient Light Sensor from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Ambient Light Sensor, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove Ambient Light Sensor.

Win 7 (SP1) 52%
Win XP 1%
Windows Service? Yes
(Installs a service)
Uninstall it 8%
Keep it 92%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 56.30%
Windows Vista 35.56%
Windows 10 7.41%
Windows XP 0.74%
Which OS releases does it run on?
Windows 7 Professional 28.15%
Windows Vista Business 24.44%
Windows 7 Ultimate 20.00%
Windows Vista Home Basic 8.89%
Windows 7 Enterprise 6.67%
Windows Vista Ultimate 1.48%

Distribution by countryGeography

65.97% of installs come from the United States
Which countries install it?
  United States 65.97%
  Poland 2.62%
  United Kingdom 2.62%
  Belgium 2.09%
  Norway 1.57%
  Australia 1.57%
  Romania 1.57%
  Canada 1.57%
  Egypt 1.57%
  Slovenia 1.05%
  Finland 1.05%
  Sweden 1.05%
  Austria 1.05%
  Pakistan 1.05%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 95.56%
Hewlett-Packard 1.48%
Acer 1.48%
Lenovo 0.74%
ASUS 0.74%
Common models
Dell Latitude E6400 38.35%
Dell Latitude E5500 13.53%
Dell Latitude E6500 12.78%
Dell Latitude E4300 8.27%
Dell Precision M6400 5.26%
Dell Precision M4400 4.51%

About Dell

Dell manufactures, sells and supports computers and related products and services.
Publisher URL: www.dell.com


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