Tools: Microsoft PIDX Checker

The "PIDX Check" tool for Windows 7 systems determines following features for example:

• The installed edition of Windows 7
• The distribution channel of the installed license (Retail/OEM)

Just enter your legit product key into the "Number" input field and the PIDX checker generates a detailed report about your license.

Download: Here

Note:  

Use this tool only for your personal and legit copy of Windows 7!