What is Ad-Watch.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 Ad-Watch.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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Ad-Watch.exe file information

The process known as Ad-Watch System Protector belongs to software Ad-Aware or Ad-Aware SE Professional by Lavasoft AB ( or Lavasoft Sweden (

Description: Ad-Watch.exe is not essential for the Windows OS and causes relatively few problems. The Ad-Watch.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 2,468,200 bytes (50% of all occurrences), 517,632 bytes or 538,112 bytes. 
There is an icon for this program on the taskbar next to the clock. The file is not a Windows core file. The process can be uninstalled in the Control Panel. Ad-Watch.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 8% dangerous, however you should also read the user reviews.

Uninstalling this variant: You might want to visit the website or safely remove the program using the uninstall program of Ad-Aware SE Professional or Ad-Aware (Control Panel ⇒ Uninstall a Program).

Recommended: Identify Ad-Watch.exe related errors

External information from Paul Collins:

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

Called "Ad-Watch" it monitors your computer's registry and ensures that no harmful data is written to it. If a change is detected you will be prompted to either "Accept" the change or "Block" it. Wonderful program for stopping browser hi-jack attempts. It is a component of Lavasoft's Ad-Aware 6 anti-spyware package.
  Nathan   (further information)
Blocks attempts to write new commands into your registry. You can either accept the new command line or reject them. Eother way you know when something or someone is attempting to change the registry.
This process is a spyware/adware detector, It may be blown out the false Ad-Watch.exe which the spyware rename itself
runs in the background and informs when any changes are being made to the registry. great program to protect your computer from spyware and viruses
belongs to Lavasoft..You have to buy it and I love it...great!

Summary: Average user rating of Ad-Watch.exe: based on 11 votes with 5 user comments. 11 users think Ad-Watch.exe is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving Ad-Watch issues

A clean and tidy computer is the key requirement for avoiding problems with Ad-Watch. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the Ad-Watch.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

Ad-Watch.exe [all]