PC Requirements for Running Windows 7
Windows 7 is powerful software and it requires equal power from the PC it runs on. If the PC doesn’t meet requirements for Windows 7, it won’t run the software very well. See how the hardware stacks up by visiting the Windows Welcome Center: Click Start, right-click Computer, and choose Properties. Look in the window’s System area to see its hardware stats.
Here’s a quick look at what a PC needs to run Windows 7 well.
Processor (CPU) 1 GHz or faster CPU
Memory (RAM) 1 GB RAM
Hard drive free space 16 GB
Disc drive DVD drive
Graphics memory 128 MB or more