Troubleshooting a Mysterious Glitch: Black Squares on My Screen

Have you ever encountered an inexplicable issue with your computer that left you scratching your head? I recently experienced a perplexing glitch: whenever I attempt to left-click and drag, my screen fills with black squares. Additionally, when I hover over various applications, they sometimes become highlighted in black, and this visual anomaly doesn’t seem to disappear.

In my quest for answers, I turned to Google, only to find myself more frustrated than before. I’ve already gone through the usual troubleshooting steps—restarting my computer, updating the system software, and even resetting it—but the problem persists.

If anyone has insights into what might be causing this unusual behavior or suggestions for further troubleshooting, I would greatly appreciate your assistance. It can be frustrating to feel stuck, and I’m eager to resolve this issue and get back to a smooth computing experience. Thank you in advance for any tips or advice!