Final answer:
To resolve unintended highlights and selections on a tablet's touch screen, a technician should run the calibration utility first. If persistent issues occur, updating the touch-screen driver is suggested, while OS reinstallation is considered a last resort. The correct answer is option A) Run calibration utility
Step-by-step explanation:
When a user experiences unintended highlights and selections on a new tablet's touch screen, the first step a technician should take to resolve the issue is generally to run the calibration utility. This process adjusts the touch screen's sensitivity settings to match the user's input more accurately. By running the calibration utility, you can often correct minor inaccuracies that cause the touch screen to behave unpredictably.
Disabling the touch functionality is a more drastic measure that should only be taken if calibration does not resolve the issue, as it effectively renders the touch screen component unusable. Instead, ensure to update the touch-screen driver if the calibration does not fix the problem because outdated or corrupt drivers can also lead to touch screen malfunctions. Only if all other troubleshooting steps fail, should you consider reinstalling the OS, which should be seen as a last resort due to the time and data loss that can occur from such an action.