Black Candles are bearish lines in candlestick and candlevolume charts. They signify that the closing is lower than opening for that time period.
CHKDSK, short for Check Disk, is a utility that checks the integrity of the files and file structure of your hard disk. I'll walk you through it. I have disk problems and you said I should run CHKDSK. Great.
A word of caution: Windowexeallkiller is a utility that returns control of your machine to you. You must *actively approve* --by placing a check mark--the utilities that *stay* on your computer.