Recognized by the BIOS but not by Windows 7 disks

I have 4 internal installed hard disks that worked well up until the other day.  The first is my main C: drive.  The second is my main data with several patricians disc. Then, I have two drives more who serve backup online and archive.

When that I start my computer, the BIOS reports all four drives are present, but for some reason any Windows 7 seems not be recognizing the last two.  They are not classified in management of the discs, even on a new analysis and won't come when I try to scan for missing devices using Device Manager, where they are also not listed.

Someone at - it ideas why this might be?

Hi enormouse affect,

1. you did it any software / hardware on the computer before this problem past?

2. What is the number of brand and model of the computer?

There are several possible reasons that the hard drive is not recognized.

·         Missing Chipset drivers

·         Hardware failure

·         It is an IDE drive, and it is in the wrong state (master / slave)

·         It is disabled in the bios

Determine if the hard drives Sata or IDE. Go into the bios and see if the disks are disabled by accident. If you have verified all of this, and the drive is still not recognized, download the latest drivers from the website of the manufacturer of your motherboard chipset. Try to change the mode from AHCI to IDE in the bios.

Note: Changing the BIOS / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

Let us know the status of the issue. If you need help, please after return. We will be happy to help you.

Tags: Windows

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