How to remove pre-installed apps from Xperia E? I recently bought a Xperia E and since I am not a Facebook user I'd like to remove it from my phone. That also applies for Google+ and other stuff which is installed on my phone by default but I am realy not going to use it so it just consumes my memory and battery. 

I tried to go for example to Settings->Apps->Google+ but there is only disable option, not unistall like with manually installed apps.
If it came pre-installed with your phone then its a system app. You cannot uninstall it (unless you have your phone rooted, which i think you don't have). Best option for you is to disable the app. In this case, the app won't run and won't consume any CPU or battery (if that's your problem). If you are concerned about storage space running out then this won't solve the storage problem.