Hmm. I think we've been thrown by the incorrect information in the error message you received.
Open
Computer and click on
System Properties. Next, click on
Advanced system settings and provide administrative credentials when prompted. On the
Advanced tab, under
Performance, click on
Settings... and then click on the
Visual Effects tab. Ensure that your settings match mine, and then click
OK twice to close the dialogue panels. You may need to reboot for any changes to take effect.