KASEYGREAT.COM. Microsoft Windows 7 Professional Upgrade

Upgrade to Windows 7 Professional. With Windows 7 Professional, fewer walls stand between you and your success. You can run many Windows XP productivity programs in Windows XP Mode and recover data easily with automatic backups to your home or business network. You can also connect to company networks effortlessly and more securely with Domain Join. With all the exciting entertainment features of Windows Home Premium, it's a great choice for home and for business. Need to use multiple languages on your PC or help protect your data with enhanced BitLocker security? Get Windows 7 Ultimate.

SYSTEM REQUIREMENTS:

If you want to run Windows 7 on your PC, here's what it takes:
DVD-ROM drive
1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
16 GB available hard disk space (32-bit) or 20 GB (64-bit)
DirectX 9 graphics device with WDDM 1.0 or higher driver
Additional requirements to use certain features:
Internet access (fees may apply)
Depending on resolution, video playback may require additional memory and advanced graphics hardware
For some Windows Media Center functionality a TV tuner and additional hardware may be required
Windows Touch and Tablet PCs require specific hardware
HomeGroup requires a network and PCs running Windows 7
DVD/CD authoring requires a compatible optical drive
BitLocker requires TPM 1.2
BitLocker To Go requires a USB flash drive
Windows XP Mode requires an additional 1 GB of RAM, an additional 15 GB of available hard disk space, and a processor capable of hardware virtualization with Intel VT or AMD-V turned on
Music and sound require audio output
Note:�Product functionality and graphics may vary based on your system configuration. Some features may require advanced or additional hardware.

PLEASE MAKE SURE THAT YOU CAN UPGRADE YOUR COMPUTER FROM THIS PRODUCT.
http://www.microsoft.com/windows/windows-7/get/upgrade-considerations.aspx