Determine and Change your Windows version or Product Key

Here are some commands, tools and links to help determine and/or change your Windows Product Key.

• Run the command: winver
• Control Panel-->System
• ProduKey from NirSoft
• Retrieve my Windows 2000/XP/2003 or Office 2000/XP CD Key tool: Magical Jelly Bean Keyfinder
• Other tool to read Microsoft registry product keys:  CD Key Reader
• Tool to determine what hardware "XP activation" detected has changed on your system: http://www.licenturion.com/xp/

How to change the Volume Licensing product key (or Corporate Key) on a Windows XP SP1-based computer.