Appendix E Using Data Igloo with Microsoft Security Essentials When using an anti-virus or an anti-malware program, it is necessary to save the virus definitions on the computer. When the computer is protected by Deep Freeze, the definitions may be lost during a reboot. In addition to the virus definitions, it is necessary to save the configuration, scan history and other data relevant to the user. Some anti-virus programs may not allow changing the folders from C: drive due to their own self-protection mechanisms. The solution is to create the folders first, redirect them using Data Igloo and then install the Anti-virus program. The following example provides steps for redirecting the folder and registry keys for Microsoft Security Essentials using Data Igloo: 1. Reboot workstation into Thawed state. 2. On the computer where MSE is not installed create following new folders, which will be used by Microsoft Security Essentials: On all Windows Operating Systems: C:\Program Files\Microsoft Security Client On XP systems: C:\Documents & Settings\All users\Application data\Microsoft\Microsoft Security Client C:\Documents & Settings\All users\Application data\Microsoft\Microsoft Antimalware On Windows 7 systems: C:\Programdata\Microsoft\Microsoft Security Client C:\Programdata\Microsoft\Microsoft Antimalware 3. Using Data Igloo folder redirection feature, redirect newly created folders to a Thawed location. For this example, we are redirecting to E: For this example, we are using Windows 7 and the following folders need to be redirected to E: C:\Program Files\Microsoft Security Client C:\Programdata\Microsoft\Microsoft Security Client C:\Programdata\Microsoft\Microsoft Antimalware 4. Download and install Microsoft Security Essentials. Update the Anti-virus and Spyware definitions. 5. Using Data Igloo registry redirection feature redirect following registry keys onto a Thawed location. For this example, we have chosen E: drive. 6. Reboot the workstation into Frozen state. All new virus and spyware definitions, history of detected items, as well as Microsoft Security Essentials settings will be retained across reboots. This setup will also allow to retain new version updates of the Microsoft Security Essentials. This example is only applicable to Windows XP and Windows 7. On Windows 8.1 and Windows 10 version 1903, Microsoft Security Essentials is built-in as part of Microsoft Defender.