If you already own a legitimate license for Office 2010, you do not need a generator. You can retrieve your existing key through the following methods: Retail/Online History

If you're looking for information on how to activate Microsoft Office 2010 Professional Plus with a legitimate product key, I can provide general steps:

Does Any One Have A Product Key For MS Office 2010 University?

Key generators (KeyGens) are often bundled with hidden dangers that far outweigh the benefit of free software: Malware and Security Risks

Retail versions of Office 2010 shipped on a physical disc. Look for a bright sticker on the inside sleeve of the CD case or on the back of the original box packaging. The Risks of Using Defunct Software