Hi, My name is Estrella, and I'm a Microsoft user like you. I'm sorry to hear you're experiencing this issue. I'll be more than happy to help.
It is recommended to install cumulative updates as they include important security patches and performance improvements. However, I understand that you want to save storage and optimize your PC by not installing this update. In this case, I suggest using the 'show or hide' tool to hide the update.
You can download and install the tool here: http://download.microsoft.com/download/F/2/2/F2...
Run the troubleshooter. Choose to hide the specific update so Windows will not install it again.
Click Advanced > Check the Apply repairs automatically box, and hit on Next > Hide Updates.
Note: If you encounter a warning message while downloading the file, select 'Keep.'