Is there a different color point on your computer screen? It is probably a dead pixel. But the best way to find them is using a program like LCD PixelsOK.
LCD PixelsOK is a fantastic tool, designed to automatically search and detect dead pixels on an LCD type screen. You can use this program to check the good condition of a monitor after its purchase, or to ensure that it works correctly within the warranty period. Depending on the manufacturer's policy regarding dead pixels, you can even get a new monitor.
Best of all, the PixelsOK LCD program is very easy to operate, despite being only in English, as it includes a fairly simple and intuitive graphical interface, and requires no installation. Simply download the file we offer below and run it on that computer on which you want to test your monitor. After performing a series of tests and tests, LCD PixelsOK will indicate if there is a dead pixel on your monitor or if, instead, your monitor works perfectly.
NOTE: To ensure proper operation, the PixelsOK LCD program requires that we have the Microsoft.NET Framework component installed on our computer.
You can free download LCD PixelsOK 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.