u disk variable hard disk solution:
1. Press Del to enter BIOS and turn on IDE mapping function. Map SATA to PATA devices. (Will affect the performance of serial hard disk, the equivalent of SATA hard disk as a PATA hard disk) specific operations please check the motherboard instructions.
2 when the motherboard driver does not install the motherboard when the IDE disk driver does not appear this phenomenon, (you pay attention to the motherboard driver installation process, there is a hint that you want to install IDE disk driver prompts?)
3 Uninstall IDE disk drive (about SW IDE disk, SW is NF motherboard specific disk accelerator, quite Intel's IAA drive) in other words: SATA hard drive + disk acceleration Drive = hard drive safe Removal flag The keyboard lights are still on when the computer shuts down and the BIOS setup problem Please read the instructions or consult the master.
Secondly:
1, re-production, with similar version number of mass production tool volume production
2, Download universal u disk tool: Fbinstools, use it to format the U disk, select the mandatory format, you can restore the original state of U disk
Attach a way to turn a U disk into a hard disk:
U disk inserted into the computer to show the removable disk, then there is no way to turn the U disk into a local disc it? So the next time you can start from the USB to install the system. Today you heroes small set and everyone to share the U disk into a local disc method bar!
1, with the mouse right click on computer desktop computer icon, and then select "Device Manager", and then in the disk drive list to see the hard disk and your U disk, that is, SD card, in the right click to select "Update Driver".
2, then select "Install from the list or specified location", click Next button, select "Do not search, here to choose their own installed driver" item.
3, then continue to point next, choose from disk installation → Browse to find [u disk (SD card) partition computer visible Driver] is Cfadisk.inf, click Next.
4, at this time Windows system will be prompted not to recommend, here do not pipe it, directly click "Yes", the Windows system prompts the signature, the point continues.
5, Windows system copy files, waiting for the completion of the replication, to restart the words, here you do not need to reboot.
6, the last time you open My computer, you will find that the U disk has been shown as local disks.