Authenticating Windows SE

So I have an un-authorized Windows 7 for reasons I won't go into details.  My security essentials has been de-activated, obviously, and the reminder is really bothering me and I want to get rid of it.  Either can someone point me to a software that can activate my security essentials, or tell me how to uninstall it, it would be appreciated.  Thank you.

Well, even a cracked version of windows (atleast in my experience) if done well, works perfectly. I don't know how you activated your version, if it was a self activator in some modded version you found online, or just a poor activator. Security essentials is trash anyways, use a real antivirus system. I'd suggest Malwarebytes.

Just uninstall it through Programs and Features or with a program like CCleaner. There are certain free Microsoft products that need to be "activated" but they are done so through whether or not the operating system is genuine. So the only way to activate it is to have a legitimate copy of Windows that has been paid for.