I have HP pavilion dv6-3140 laptop on mine system and under that I have installed the windows vista. Last week I have upgraded mine windows vista to windows 7. Everything on the installation of windows 7 works fine and I didn’t had any issue but after restarting mine system I have found the lots of issue on mine laptop. Mine windows defender and windows security center are not enabling and mine Microsoft security essential not working. Now I don’t what to do. Can anyone suggest on this and so that I can solve mine issue. Please help me on this topic.
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