I once installed a program called PC Booster..when I got it right after I installed I tried running it.It is a program made to clean and fix your system through scanning your specific driver and mostly, I included programs installed in my computer.There is a space box in the font and I included it.After a successful scanning my system was crushed.My fonts are now unreadable.I installed tahoma so i could read all the fonts in my computer.But the problem is I couldnt set font in windows and it seemed so ugly.I scanned through command promt with sfc \scannow but still nothing happens.What should i do?Does anyone out there who can help this problem?