Unit 10 Ex. 6 Hello, Ann! Thank you for your email. I was very upset to hear what happened to your computer. I think head crash could happen because hard drives are very sensitive to all vibrations. It may occur when the head of hard disk drive touches its platter and damage the disk. To avoid this problem, you should take some precaution: to archive your files, check your hard drive for logical and physical errors regularly - use a disk diagnosis, and to make backup copies of important files. Also you should not turn your computer off and on quickly. Be careful! Best wishes, Yulia
