It is a common fact that some of the pixels on your LCD screen might not be working and may be dead. This cant be directly identified, Rizone Pixel Repair is a freeware too which helps you to detect stuck or dead pixels and also repair stuck pixels. The tool is very useful and easy to use and locates the dead pixels on your LCD screen.
You can use the ‘Dead pixel locator’ section on ‘Rizone Pixel Repair’ to look for dead or stuck pixels. You can also use this section to help you find dirty little spots and dust when you clean your screen. You can check for dead pixels using different colors. Now, after you’ve located stuck pixels, try to repair them with this tool. You can set the colour mode from the options available and then press go button. This will place the flashy window under the stuck pixel. Sometimes this unsticks that pixel, but as stated, not always.
This free utility does not always work while repairing.