When I do ctrl+alt+del I see "Lock this computer", "Switch user", "Log off", "Change password, "Start Task manager"
The border around these is very vaint, almost not seen.
How do I change this border color and/or size?
Firstly, please let us know whether other text on your Desktop can be seen clearly.
Meanwhile, based on my research, please check following:
1. Please make sure that you have updated the driver of your graphic card to the latest.
2. Please make sure that you have turned on
Hope this helps.
TechNet Community Support