Feb 242011
 

Trying to upgrade or install Microsoft security essentials Version 2 an it fails with the following error

The instruction at 0x75ef3fbf referenced memory at 0x00xxxxx. The Memory could not be read

And the error dialogs looks similar to ones given below? Then Read on on how to fix this:

 

Microsoft Security Essentials Version 2 Upgrade Error dialog

Error While Upgrading to Version 2

Microsoft Security Essentials version 2 installation error dialog

Same error, when trying to install a fresh copy MSE v2

 

The Problem Explained

This issue may have been caused as some of Microsoft Security Essentials (Version 1) files would have got corrupted during the upgrade process on your computer or some for worse, some important system files need by windows have have been effected. In my case,   Continue reading »