How to Speed Up Windows 7 Quickly and Easily
• 1GHz processor (32- or 64-bit)
• 1GB of main memory
• 16GB of available disk space
• Support for DX9 graphics with 128MB of memory (for the Aero interface)
• A DVD-R/W drive
Keep in mind however, that if you were able to effectively run Windows XP or Vista, there should be little reason that you cannot also run Windows 7. The new Windows OS is designed to be very light and run quickly without requiring huge amounts of RAM or GHz's. Most folks having problems are the ones trying to jump from Windows 2000 to 
Windows 7.
If you meet or come close to these requirements and Windows 7 is still slow, then the issue lies somewhere else. For starters, cut down on the amount of programs running in the background. You can use MsConfig to do this or simple install software that will identify programs secretly running in the background and eating up loads of virtual memory.
The second option is to clean Windows registry. This is perhaps the most effective means to speed up Windows 7. There is no internal cleaning tool to clear out errors and corrupt files from the registry. This contributes to significant congestion which will slow down Windows 7 significantly.
While these tweaks can be complicated to perform alone, you can scan your system with software which will fix these problems automatically. It will only take a couple minutes and you should notice a faster Windows 7 right away. Don't worry about compatibility issues, if the program can run on Windows Vista it can run on Windows 7.
