How to delete update?

[Grimgrak]

My tablet downloaded lollypop by itself but i'm happy to keep kitkat how do i find this file and delete/prevent it from autodownloading again?

 

[STARGATE]

If it's already installed, you can't do much about it, unless you root the device. There is plenty of info on rooting here in the forums.

 

[tomlh]

Turn off auto update and dont install the downloaded one.

 

[Grimgrak]

No it's downloaded automatically but not installed. I need to delete the downloaded file hogging up space but have no idea what to search for.