What should I do if I can't find the hard drive when I install Win7?

Windows 7 installation issues: Hard drive not found
When installing Windows 7, one of the following error messages may appear:
• No drives were found. Click “Load Driver" to provide a mass storage driver for installation.
• The Windows Installer cannot configure Windows to run on the hardware of this computer.
The following actions will help resolve this issue.
Update the storage controller driver during the installation of Windows 7.
You may need to update your computer's storage controller driver. This driver controls the interaction of the hard drive with the rest of the computer. Here's how:
1. Check the documentation that came with your computer or go to the manufacturer's website to find out what type of storage controller your computer uses.
2. Go to the manufacturer's website on another computer and download the latest drivers to a USB flash drive or other removable media.
3. Start Windows 7 installation again, on the "Where do you want to install Windows?" page, click “load driver”.
4. Insert the removable media containing the driver into your computer and click “OK”.
5. Select the driver from the results list and click “Next”. Follow the on-screen instructions to continue installing Windows 7.
Update Drivers for Computer Chipsets
In some environments, computers that use a specific type of chipset (part of the computer's internal hardware) and have an advanced format hard drive installed may receive these errors.
Installing the latest drivers from the chipset manufacturer or changing some of the storage device settings in your computer's BIOS can help resolve this issue.
Case Analysis: When reinstalling the system, you can't find the hard drive solution.
Fault phenomenon: Install the system with the installed version of the system. When the hardware is detected and enter the blue background installation interface, the prompt cannot find the hard disk. Drive, can not install the system, but with GHOST there is no problem, all the way through.
Workaround: This phenomenon is more common in laptops. The solution is also very simple: press the F2 to enter the BIOS setting on the first screen (desktop press DELETE, IBM's notebook press F1), then use the arrow keys to select the config item. Enter, then find the item with sata, change its value to “configuration”, finally F10, and Y, save and launch, so you can identify it.