Windows XP Professional retailbox Features: 1. Fast user switching Great for computers used by more than one person. Allowing another user to log on without ending the previous user's session. That means that running applications and open documents are still available when you switch back. 2. Network options If you have more than one home computer, setting up a network is easy with the network wizard. 3. Remote Assistance Invite a friend or support professional to connect to your PC over the Internet,and to fix a problem or answer a question. 4. Explore the Internet Increase productivity and make browsing the Internet more enjoyable by reducing unwanted ads. Plus, get better information about events that are happening as you browse the Web, so you can manage media: Enjoy music, video, and broadband content with enhanced security. Plus, transferring footage to your computer is faster and editing is easier than ever. Notes for Mac Users: If you want to install Windows XP on an Intel-based computer, you cannot use this software. You may use any 32-bit edition of Windows Vista or Windows XP (with SP2 on the installation disc) with Apple's Boot Camp technology. OEM editions, like this one, will not work with Parallels. systerm requirement: Hard Drive Space: 1.5 GB Processor Speed: 233 MHz (400 MHz for advanced features) RAM: 64 MB (128 MB for advanced features) Graphics: 800x600 SVGA screen resolution, 8 MB of VRAM Other: CD-ROM drive, internet access Advanced: DVD drive and decoder, video capture device, network connection