If you are someone that is in the spirit of helping others on their PC’s you will eventually will run into this scenario where the user does not have the Product ID and/or CD Key required to re-install either Windows or Microsoft Office. Many people do not know from the “get go” to keep these keys in safekeeping in the event a re-install is required. It is very important to keep these keys in safekeeping because you will eventually need them. Without these keys available the install process will not proceed.
If you are someone that has lost the keys to your Windows or Office installation you can easily retrieve those keys by using ProduKey (by Nirsoft).
ProduKey is a small utility that displays the ProductID and the CD-Key of Microsoft Office (Microsoft Office 2003, Microsoft Office 2007), Windows (Including Windows 7 and Windows Vista), Exchange Server, and SQL Server installed on your computer. You can view this information for your current running operating system, or for another operating system/computer – by using command-line options. This utility can be useful if you lost the product key of your Windows/Office, and you want to reinstall it on your computer.
ProduKey doesn’t require any installation process or additional DLLs. In order to start using it, just run the executable file – produkey.exe The main window of ProduKey displays the list of Windows, Office, and SQL Server products installed on your system. For each product, the “Product ID” and “Product Key” are displayed.