6. Tick the box to accept the license terms, then click Next. Choose a custom installation, then choose your SSD from the list. If you disconnected your other hard disks, it should be the only option. Click Next and installation will begin.
7. After the Windows installer has finished, it will reboot the computer. At this point, you may need to enter the Bios and make the SSD the main boot device. The Windows installer will then run final setup, asking for a user name and computer name.
8.Create a username and password, review your settings, then click Next. After you set your computer’s network location, Windows 7 will finalize your installation, display the Windows desktop, and begin installing software updates.
9. Switch off the computer, reconnect any other hard disks, then reassemble your case. Turn the computer back on, the Bios and make sure the SSD is the main boot device, not your old disk, then reboot once again. Once Windows 7 loads, we’d recommend installing the rest of Microsoft’s software updates.
Obviously, all your old files and Windows installation are still on your old disk. You can copy your documents, videos, music and pictures across to their respective folders on the SSD, but it's best to leave most of your files on the hard disk to avoid using up the limited space on your SSD.
There are numerous ways to tell your new Windows installation that your documents and other filess are on a different hard disk, but with Windows 7, the most elegant method is to use its libraries feature.
Create a folder on your hard disk (for example e:/docs). Right-click the folder in Explorer, scroll down to the Include in library option, then choose the Documents library from the list. Then copy any documents from the My Documents folder to the new one. You can do the same for movies, music and pictures, keeping your files close at hand without them residing on the SSD.
When it comes to programs, it makes sense to install those you use most on the SSD to benefit from its speed. When space becomes too tight, or you don't need the extra speed, install new programs on your old hard disk by specifying where to store the files during the installation process. If you leave the settings at their defaults, programs will always be installed to the same drive as Windows.
Find out how to tweak Windows 7 further for SSD use with our top tips for SSDs. Also, if you want to install an additional hard disk in your PC, or replace your old disk with a bigger, faster new model, see our hard disk installation guide.