Thank you for your post. There is a setting called Predictive Patch downloads that is designed to download missing patches based on your results plus other patches that you may need in the future. This would include third-party updates.
To disable this setting, go to Tools > Options > Downloads. Uncheck the Predictive patch box as seen below.
Additionally, you can also use our console script to help keep your patch repository location at a manageable size. Find those details in the document below.
Great, thanks a lot Anthony!