Solution : Microsoft Security Essentials Error 0×80070645

Microsoft providing free antivirus software for all windows platform ( Windows must be genuine) and also its good when compare to other free edition of antivirus software.

Recently i updated Microsoft Security Essential and i found an Install Error 0x80070465

Fix It Microsoft Security Solution
How to Resolve this Issue :

  • Deleting Registry Keys : 

    HKEY_CLASSES_ROOT – Installer – UpgradeCodes – 1F69ACF0D1CF2B7418F292F0E05EC20B
Restart your computer and issue will be solved.


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