How to abort Updating process?

I am using the v5.0.94.0 and updating my antivirus regularly is a very good idea, but there are times that internet connection are so slow that it could not be able to update and it just there working on and trying to update. The Green button in the tray icon keeps on circling like it's circling forever while still update progress is in 0%.

What I'd like to do is to stop the operation, to abort the update process when net connection is slow and update it when net are fast. The problem was that no matter how many times I click the Abort button it didn't work and it is still updating.

What should I do to stop the update process when abort button didn't work?

 

The simplest solution I can think of is to disable your network adapter. Aborting the update has never seemed to work very well.