The hard disk on the computer I got is nosiy - in fact, it sounds like it might fail, which makes me nervous

Bougth 2 computers, one worked excellent, but the other one crashed constantly and when we checked the hard disk, bad sectors were found, just now started the returning process for the last one...

In fact, my keyboard never did work.- Hard disk is noisy - sounds like it might fail.- DVD drive is NOT a RW, only a reader