Microsoft Windows 2000 Professional Upgrade CD

Software is complete in open box.

System Requirements:
133 MHz or faster Pentium processor (supports up to 2 processors on a single computer)
Microsoft Windows 95 or 98
64 MB RAM recommended (32 MB minimum; 4 GB maximum)
2 GB or more hard disk space with 650 MB free space (more free hard disk space is required if installing over a network)
CD-ROM or DVD drive (for installation)
VGA or higher-resolution monitor
Microsoft mouse or compatible pointing device
High-density 3.5-inch disk drive (unless your CD-ROM drive is bootable and supports starting the setup program from a CD)
For network installation:
Windows 2000 compatible network adapter card and related cable
Access to the network share that contains the setup files
Additional product features:
Increased uptime of the system and significantly fewer operating system reboot scenarios
Better memory management
Windows Installer tracks applications and recognizes and replaces missing components
Protects memory of individual applications and processes to avoid a single application bringing the system down
Encrypted File Systems protects sensitive data
Secure Virtual Private Networking (VPN) supports tunneling in to private LAN over public Internet
Personalized menus adapt to the way you work
Multilingual version allows for User Interface and Help to switch, based on logon
Includes broader support for high-speed networking devices, including Native ATM and cable modems
Supports Universal Serial Bus (USB) and IEEE 1394 for greater bandwidth devices