Microsoft Security Essentials Installation error 0X80070643

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Microsoft Security Essentials Installation Error 0X80070643

Microsoft Security Essentials Installation error 0X80070643. When you try to install Microsoft Security Essentials, you may receive an error code 0X80070643.

Symptoms:

The installation may be interrupted due to the following reasons:

  • This is because of left over files of MSE old version or old version properly not removed.
  • Make sure that windows MSE services stopped in order to fix the Microsoft Security Essentials Installation Error 0X80070643.

Resolution Steps:

Follow the below resolution steps in order to fix the issue with the error while installing the Microsoft Security Essentials.

  1. Use Revo Uninstaller to completely remove the Microsoft Security Essentials from the computer.

2. If you do not find the Microsoft Security Essentials in the list of the installed application, make a force uninstall.

Revo>force uninstall>locate the MSE installed folder>select advance remove option from the section.

3. Once it is removed, reboot the computer and then install Microsoft Security Essentials.

4. You can download the Microsoft Security Essentials from the below link:

http://windows.microsoft.com/en-us/windows/security-essentials-download

Note:

Microsoft Security Essentials can be installed only in Windows XP and Windows Vista Operating System.

For Windows 7, Windows 8/8.1 and Windows 10, Windows Defender is used instead of Microsoft Security Essentials and it comes pre installed with the Operating System.

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