This sounds like a property of your operating system, not ESO. Either change the ESO keybind from escape or see if it’s possible to disable the action in your computer settings.
SilverBride wrote: »I googled this problem and found this:
Check for Stuck Keys
One of the most common causes of this issue is a stuck Alt key. Alt+Esc is a standard Windows shortcut that behaves similarly to Alt+Tab, cycling through open windows.