Hard drive can identify but can't use what's going on?

Failure Analysis: The general new hard disk to be formatted before the establishment of a primary partition to use, and computer symptoms are most likely caused by this situation.

Troubleshooting: Click "Computer" in turn, click on "Management-Disk Management", can see your hard disk, if you can see, the disk first format, and then in the primary partition. It is best to partition the disk. Then restart the computer to see if the failure can be resolved. Because if the new hard disk is not partitioned, the system is not recognized disk size. will appear to recognize the hard drive is not normal use of the phenomenon.

Of course, if the above method does not work, this phenomenon is mostly the hard drive line, try to pull the plug again, before the study of worry-free have encountered, and then Plug and unplug the good. But it may also be a problem for the hard disk itself. But this is not a very likely scenario. But there are some old computers, it can not correctly display the new hard disk, you will be able to drive the hard disk after the boot, into the Diskgen partition, in fact, is to repartition.

Finally, we say that USB mobile hard disk can identify the original failure analysis and its solution:

The second is the mobile device USB power shortage caused by the solution is to try to change a good quality USB extension cord, extension cord as far as possible not to use too long; there is the best not to connect the mobile hard disk to the computer host front-end USB jack, Instead, the mobile hard disk is attached to the back-end USB Jack of the computer host, and many host front USB is not connected directly to the host motherboard, and the interface is connected directly to the motherboard. In general, these two conditions cause mobile devices to identify the reasons for the inability to use and its solution.