Tuesday, March 29, 2011

Cannot install Microsoft Security Essentials

This article contains solutions for issues you may encounter while installing Microsoft Security Essentials in Windows XP


Installation fails for an unknown reason, or you receive an error message with error code, such as 0x80070643, 0X8007064A, 0x8004FF2E, 0x8004FF01, 0x8004FF07, 0x80070002, 0x8007064C, 0x8004FF00, 0x80070001, 0x80070656, 0x8004FF40, 0xC0000156, 0x8004FF41 0x8004FF0B, 0x8004FF11, 0x80240022, 0x8004FF04, 0x80070660, 0x800106B5, 0x80070715, 0x80070005, 0x8004EE00, 0x8007003, 0x800B0100, 0x8007064E, or 0x8007007E.

If your computer is running Windows XP Service Pack 2 (SP2), you will see one or more of the following error messages:

• Installation Wizard is missing a filter manager rollup package needed to complete the installation.

• Setup cannot update your Windows XP files because the language installed on your system is different from the update language.


Microsoft Security Essentials cannot be installed on a computer that is running other security programs. Sometimes, even if you remove other security programs, they do not completely uninstall. You must be running a genuine version of the Windows operating system to install Security Essentials.

If your computer is running Windows XP SP2, you might be missing one or more of the following prerequisites for installing Security Essentials:

Windows Installer 3.1

•Forefront Client Security Filter Manager QFE for Windows XP/SP2


Important: You will need to restart your computer while resolving this issue. Bookmark this page (mark it as a Favorite) to make it easier to find this topic again or print it for easy reference.

Step 1: Remove any existing security programs

1. Completely uninstall any existing Internet security programs.

2. Restart your computer.

3. Install Microsoft Security Essentials again. If this does not resolve the issue, continue to the next step.

Step 2: Ensure that the Windows Installer service is running

1. In Windows XP

 click Start--> click Run--> type services.msc--> and then press Enter.

2. Right-click Windows Installer--> and then click Start. If Start is unavailable and the Stop and Restart options are available, this tells you that the service is already started.

3. On the Services page--> on the File menu--> click Exit.

4. click Start--> click Run--> type cmd--> and then press Enter.

5. Type MSIEXEC /REGSERVER--> and then press Enter

6. Install Microsoft Security Essentials again.

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