HDD showing in BIOS but not in disk management or mycomputerClosed

Question

Hello, 

I bought a new sdd and installed win 7 on it. I had previously 2 extra hdd connected and working and showing on previous OS HD(this HD is removed from PC now) . after install of new OS I see the 3  drives in bios but see only the ssd in disk management and the other 2 are not showing. the 2 HDD are still plugged as they were. did I miss something.
In disk management I see the SSD hightlighted in blue and below I see grayed out disk 2 and disk 3. I tried to add a drive name but nothing happens.

i am running win 7 and all I did was install a new os on a new SDD and kept other 2 HDD pluged in .

thanks for any support

Computertech · Answer

Did the greyed out option showed as not initialized or Unknown?

If permissible please post the picture of it.

R2D2_WD · Answer

Hi Porthos,

So, the two storage drives are listed in Disk Management but appear as Not Initialized? What options do you get, when right clicking one of the drives? Keep in mind that initializing the drive will erase all the data stored on it. What you are trying to do should work and you should be able to use your storage drives as usual. If you have the possibility, change the SATA ports of the storage drives.

Hope this helps

leafwarbler · Answer

Maybe you need to change the SATA MODE. Enter into BIOS and change stat operation of the two HDD to AHCI. AHCI is for Windows 7.

HDD showing in BIOS but not in disk management or mycomputer

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