Windows 7 won't show SATA Hard Drive in My Computer

I have clean install of Windows 7 x64 with two SATA hard drives. When I open My Computer, I can see only the drive where Windows are installed (and all partitions), but I don't see the other one.

When I go to disk manager, I can see that both drives are detected and the one that I don't see in My Computer is also marked as Primary, but when I right click, the Open and Browse are gray.

I also checked drives with gparted on live Ubuntu and they both seem to work correctly, the second drive wasn't marked hidden or anything else. Before installing Windows 7, I had Windows XP, where both drives worked properly.

Solution 1:

Right click on the drive in disk manager and see if you have the option to map it to a drive letter.

If that doesn't work, can you please take a screenshot and attach it to your original question.