Hi, I am having a HP laptop with Windows 7 installed in it. I have removed all the old security app from my laptop before I start to install Microsoft security essential. While I was installing the Microsoft security Essential an installation error occurred. A message was displayed on the screen saying “! Can't complete the Microsoft Security Essentials Installation Wizard”. Error Code: 0x80070643. Then I quit the install and restarted the system. When I tried the installation I repeatedly got the error message. Can anyone tell me how to resolve this issue.
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