What is wlidsvc.exe?

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 wlidsvc.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.

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Wlidsvc.exe file information

Windows Task Manager with wlidsvc
Wlidsvc.exe process in Windows Task Manager

The process known as Microsoft Windows Live ID Service or Windows Live ID Sign-in Assistant belongs to software Windows Live ID Sign-in Assistant or Microsoft Windows Live ID or Microsoft CoReXT or Windows Live ID Sign-in by Microsoft (

Description: Wlidsvc.exe is not essential for Windows and will often cause problems. The file wlidsvc.exe is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 2,292,096 bytes (22% of all occurrences), 2,286,976 bytes and 7 more variants. 
The program is not visible. It is digitally signed. The wlidsvc.exe file is not a Windows core file. The software can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 20% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to do the following:

Recommended: Identify wlidsvc.exe related errors

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

WLIDSVC.EXE and WLIDSVCM.EXE work together to form the Windows Live Sign-In Assistant service, which helps you stay logged into Windows Live. The WLIDSVC.EXE is the actual Windows Service, and the WLIDSVCM.EXE is the “Service Monitor”.
  Tom   (further information)
diese exe war bei mir in window live. war so mittels suche nicht zu löschen. habe window live deinstalliert. jetzt ist diese exe nicht mehr da.
Ist ein Prozess von Windows Live
Eins ist sicher: Es ist ein Virus. Nur welcher, dass bleibt mir leider ein Rätsel.
nein, es ist kein virus, hier mal ein ausschnitt, von einer anderen website, wo die leute wohl mehr ahnung haben ;) These two processes work together to form the Windows Live Sign-In Assistant service, which helps you stay logged into Windows Live. The WLIDSVC.EXE is the actual Windows Service, and the WLIDSVCM.EXE is the “Service Monitor”.
    (further information)

Rating chart

Summary: Average user rating of wlidsvc.exe: based on 6 votes with 5 user comments. 2 users think wlidsvc.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users think it's neither essential nor dangerous. One user thinks wlidsvc.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving wlidsvc issues

A clean and tidy computer is the key requirement for avoiding problems with wlidsvc. 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 wlidsvc.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

wlidsvc.exe [all]