Hi
Click your Start Button, then just type dccw and press Enter
That will open the screen calibration utility
Work through the steps and you will find the contrast setting, also on each page of that utility, choose the best and clearest settings for your screen
Then at the end of that process, you will be asked if you want to open Clear Type settings, tun that utility also and on each page, choose the darkest and clearest version of the text . . .