Why does my calculator automatically open (multiple times) when my computer is idle?
Calculator is opening multiple times automatically during normal operation and while idle.
Solution 1:
Worth a shot:
Many keyboards have a key to open the calculator, perhaps yours is stuck.
To check if this is happening, go to System → Preferences → Keyboard Shortcuts and look for "Launch Calculator". The assigned key should be XF86Calculator.
Set a new shortcut, one that you're not going to trigger by accident, and see if it's still happening.