What is SDImmunize.exe?

The genuine SDImmunize.exe file is a software component of Spybot - Search & Destroy by Safer-Networking.
SDImmunize.exe is an executable file that belongs to Spybot - Search & Destroy, a program that scans and removes spyware and adware from computers running Windows. This is not a critical Windows component and should be removed if known to cause problems. Removing this file may cause problems while running Spybot - Search & Destroy. Spybot – Search & Destroy is a freeware, full fledged security program that removes malicious programs and protects systems from online threats while providing live protection from viruses, trojans, malware, etc. The program also features a Boot CD creator, a registry repair tool, startup tools, command line parameters, etc. Spybot – Search & Destroy was created by Patrick Michael Kolla in 2000 while he was still a software engineering student. Safer-Networking Limited is an Irish company that was founded by Patrick Michael Kolla in 2000 to develop and distribute his program, Spybot – Search & Destroy. The company is currently headquartered in Wicklow, Ireland. The company is financially supported by donations from people are over the world.

SDImmunize stands for Spybot Search & Destroy Immunizer

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 SDImmunize.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 SDImmunize.exe related errors

SDImmunize.exe file information

The process known as Pro-active browser protection belongs to software Spybot - Search & Destroy (version 2) by Safer-Networking (

Description: SDImmunize.exe is not essential for the Windows OS and causes relatively few problems. SDImmunize.exe is located in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 3,219,880 bytes. 
The program has no visible window. SDImmunize.exe is a Verisign signed file. SDImmunize.exe is certified by a trustworthy company. The SDImmunize.exe file is not a Windows core file. It can change the behavior of other programs or manipulate other programs. SDImmunize.exe is able to connect to the Internet and monitor applications. Therefore the technical security rating is 39% dangerous.

Uninstalling this variant: You can do the following:
  1) uninstall the associated program (Start > Control Panel > Uninstall a Program > Spybot - Search & Destroy 2)
  2) search the support area on the Safer-networking website
  3) look for a new, improved version.

Recommended: Identify SDImmunize.exe related errors

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


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Best practices for resolving SDImmunize issues

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

SDImmunize.exe [all]