A few days ago there's sth wrong with my computer because some system file were lost. At that time I was very worry cuz I must type something by computer such as there is a  thesis which one of my friend require me write for her and I can't very well refuse her.I shoud reset my windows system to restore my computer but the question is that the CD-driver couldn't be read when turning on the computer so I must dismantle the hard disk and install it on other's host.Unfortunately in course of install the system into my hard disk there's sth wrong with his host neither me nor he can fond the problem out.Because it's caused by me so I take his host to the center of DaXing and paid one hundred yuan to repaired it.These days I was really bz for the computer and I also bored about it.