Why the hell you use so many anti-viruses/spywares/etc?
That's 99% the reason.
I recommend you to download Kaspersky and look for those promotions of 3, 6 months, a year, if you don't want to download a pirate key buy it.
Just to be sure about that 1%, try disabling all those softwares and see what happens. Finish the processes if needed.
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