How to disable the upgrade popup

I have no intention of ever upgrading from Corel 2021, but I keep getting these annoying popups asking me to upgrade. Last time it happened I opened task manager and saw the it was a program called CUH.exe (Corel Update Helper). When I stopped the task the popup disappeared. The file is located in C:\Program Files (x86)\Corel\CUH\v2\

Anyone know if it's safe to delete this file? THX!