How to root Android 4.2.2?

I was just bought today a Lenovo tablet with Android 4.2.2. This is my first time with Android (I'm a huge apple lover) and I know NOTHING about it. I want to delete some apps and I need to root it. How do I do this? Explain everything please.

You have to install USB drivers from adb and then use root with restore by bin4ry. You should follow the onscreen instructions on rooting. Then your phone will be rooted after some time.

Happy Rooting.