1, in fact, as long as the computer purchase time is not very long, then need to expand the space will not be very big, maybe dozens of g, if so, small make suggest you spend more than 10 dollars to buy a second-hand hard drive, as to the latest ITB hard disk This is not much necessary, of course, If there is a big demand for space, it is another matter.
2, many people think that the larger the hard disk space, the system will run faster, of course, this argument has a certain truth. But at the same time, the larger the space, the more time the computer self-test takes, and the faster the computer runs.
3, pay attention to set the hard drive first boot, otherwise, it is likely to cause the computer will not be able to boot properly.
4, the expansion of the hard disk and its own hard disk model is the same, the same brand, otherwise there may be problems.