What is AcSvc.exe?

The genuine AcSvc.exe file is a software component of Access Connections by Lenovo Group.
"AcSvc.exe" is the main Windows-service module of Lenovo's Access Connections utility for a large number of its Thinkpad laptop computers. It installs in a subfolder of "C:\Program Files\ThinkPad". Access Connections is a connectivity assistant allowing creation of profiles and switching between them to simplify instant network access without reconfiguring when a laptop changes location. It can be uninstalled via the Control Panel or disabled via "msconfig" to allow Windows to manage WiFi, or updated via download; it needs to be kept compatible with drivers to avoid system problems. The existence of malware using this name is documented; remove it if found elsewhere, unless Kofax Capture software is in use, a complex enterprise server/client document acquisition system which may also use the name. Direct association between Kofax and the Lenovo program is not evident.

ACSvc stands for Access Connections Main Service

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the AcSvc.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for AcSvc.exe related errors

AcSvc.exe file information

Windows Task Manager with AcSvc
AcSvc.exe process in Windows Task Manager

The process known as Access Connections Main Service or ThinkVantage Access Connections Main Service Module or ThinkVantage Access Connections Main Service or Kofax Capture Service

belongs to software Access Connections or ThinkVantage Access Connections or IBM Access Connections or Kofax Capture (version 10.0 - Standalone)

by Lenovo ( or Kofax.

Description: AcSvc.exe is not essential for the Windows OS and causes relatively few problems. AcSvc.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 184,320 bytes (28% of all occurrences), 217,088 bytes and 18 more variants. 
The program is not visible. The file is not a Windows system file. Therefore the technical security rating is 39% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with AcSvc.exe, you may want to do the following:

Recommended: Identify AcSvc.exe related errors

Important: Some malware camouflages itself as AcSvc.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the AcSvc.exe 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.


User Comments

Access Connections is a connectivity-assistant program for your ThinkPad or 3000 Family notebook computer. With Access Connections, you can quickly switch network settings and Internet settings by selecting a location profile.
It runs constantly when you have logging enabled. Under Access Connections, click Tools Diagnostics and then click on the 'Event Log' and disable it.
IBM ThinkPad or Leveno Access Conection
uncheck all Access connections options via msconfig.If not sorted, uninstall and re-install the latest access connection application from Lenovo website
I rely on this to connect find and connet to Wireless. Turning off the Event Log caused CPU usage to STOP. I also deleted the 12 MB of log.
  Steve Ryder  
It was eating 100% CPU time. Thinkpad software seems to be full of bugs.
It consumes about 40 MB of memory. WinXP on prior (non-Thinkpad) computers seemed to connect to wireless without it. . .
  Jim B  
Defintely slows down my machine big time, and turns the fan to high (this is how I know is running) and takles like 90% of all resources.
Mine was using 50-60% CPU, and after *enabling* the event log + disabling it, it stopped.
simple do what Charlie in a post above says, and you will be OK. My ESET Antivirus (ekrn.exe) stopped eating all resources after this little tuning
It was the cause of BSOD on lenovo laptop. Needed update.
  albo griese  

Rating chart

Summary: Average user rating of AcSvc.exe: based on 11 votes with 11 user comments. 3 users think AcSvc.exe is essential for Windows or an installed application. 5 users think it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users suspect danger. 2 users don't grade AcSvc.exe ("not sure about it").

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Best practices for resolving AcSvc issues

A clean and tidy computer is the key requirement for avoiding problems with AcSvc. 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, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the AcSvc.exe 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

AcSvc.exe [all]