Repair Microsoft Security Essentials

Martin Brinkmann
Oct 31, 2009
Updated • Dec 10, 2014
Security, Windows software

Microsoft's new security software Microsoft Security Essentials has been getting some good reviews since the first public beta version was released by the company to a limited number of beta testers.

The security application is now available as a final version to protect computer systems from malicious software. It is compatible with all 32-bit and 64-bit versions of Windows XP, Vista and Windows 7, and can be installed free of charge on those systems.

Some users have reported Microsoft Security Essentials crashed and caused other errors that prevented the tool from protecting the computer it was installed on.

The unofficial Fix MSE Utility has been designed for those users. It can repair a Microsoft Security Essentials installation by resetting all Registry and other settings to their default values.

The same can be achieved by uninstalling and installing the software program but the benefit of using the Fix MSE Utility is speed.

The portable software program is compatible with the same operating systems that Microsoft Security Essentials is compatible with. It will display a small program window upon startup that looks like the following:

The window contains a small description of the program's functionality as well as a Fix MSE button which will start the repair of the Microsoft Security Essentials installation. The Microsoft Security Essentials program itself has to be closed during that process to avoid further complications.

The Fix MSE Utility is available at the Windows Club forum. You find the download link posted after this article in the summary box below.

Update: Fix MSE has not been updated since its initial release which means that it is likely no longer compatible with recent versions of Microsoft Security Essentials.

Microsoft has released a Fix It of its own that repairs several Windows security settings. All you need to do is download the small file and run it on the system. It walks you through the steps of repairing issues on the system.

While there is no guarantee that it will fix the issue that you are experiencing, it is worth a shot. If it does not work, try removing MSE from the system and installing it anew afterwards.

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  1. Wow said on January 17, 2010 at 11:26 pm

    Wow, JCR. Great display of ignorance!

  2. JCR said on October 31, 2009 at 5:36 pm

    Microsoft Security has good reviews??? Where????

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