Welcome to the site.
What Dread has said below about blocking OTA updates is true. Unfortunately a root is required.
Sorry but hopefully we can assist you with any other questions you may have.
Thanks for joining
Originally Posted by dreadnatty08
Welcome to the forums, pauluk1!
Unfortunately, I believe the only way to block an OTA update reminder is with root. Have you tried using a homescreen replacement like GoLauncher, Nova or Apex and see if that helps?
Thanks for signing up, hope you enjoy the site.