HP EliteOne G5 Maintenance & Service Manual page 111

Illegal Operation has Occurred error message is displayed.
Cause
Software being used is not Microsoft-certified for your version of
Windows.
Configuration files are corrupt.
Solution
Verify that the software is certified by Microsoft for your version
of Windows (see program packaging for this information).
If possible, save all data, close all programs, and restart the
computer.
Solving software problems 103