Downloaded Lollipop update firmware but decided not to install. How to remove firmware files?

[AC Question]

I had my software controls set to download updates over wifi, and it downloaded the Lollipop firmware. I have now disabled that option, as I see it could be problematic. It's a Galaxy Note 3 model SM-N900W8.
After reading many reports about Lollipop, and watching many demo vids, I decided to postpone the installation. There are too many cosmetic changes I don't like, and KitKat is fine for now. I'm used to it.

I believe I'm fairly techie on PC desktops and laptops, and have a rudimentary understanding of the file systems on them, but not so much when it comes to the naming conventions of the nuts and bolts of Android. I'm guessing it's a .APK file or files? Of course, I could be wrong.
I've already Force Stopped the Software Update reminder in the Application Manager ALL list. Now, I just want to remove/delete/wipe clean the downloaded firmware files to prevent accidentally installing it.
Any help would be appreciated. I'm fairly familiar with the My Files file manager app. I could install ES3 File Explorer or any other recommended software, if necessary.

Thanks for any advice, clues, assistance.
M.

 

[fretboy1969]

What did you force stop in App Manager? What is the update reminder called as I searched and couldn't find anything.

 

[dcm947]

Go to settings, more, application manager, all (tab), scroll down to "software update" and clear data.
I had 2x software update so I cleared the data from both, no more updare notifications ☺