i have a new cpu and already encountered a lot of problems. first, i downloaded some torrent overnight and i woke up the windows already crashed, i shut it down many times without knowing it could cause bad sectors. second, the cpu fell into the floor 1 ft. so also it could cause bad sectors. now the cpu is with the technician and he's scanning the hard drive for bad sectors and trying to recover my files and the os. my hard drive is 750 gb and the last time i spoke with my technician he told me that there's 15 gb of bad sectors and still scanning. now im worried if the bad sectors will eat most of my new hd.

am i into a serious problem that would cost me to buy a new hard drive? it's such a waste if i have to replace my hd which is new and has 750 gb.

is bad sectors still repairable by software?

Your computer fell to the floor? Was it on at the time? Nowadays CPU means Central Processing Unit, a chip on the motherboard, not the whole computer... case and all

yeah the whole computer fell

the shortest path to getting it running (and the lease expensive) is to
toss the existing HD, get a new one and Clean install a new OS