Before proceeding, it is vital to understand the current status of Windows 7:
A product key for Windows 7 Ultimate 64-bit Build 7600 is a 25-character alphanumeric code in the format:
XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
At the screen “Type your product key for activation,” enter your 25-character key exactly as written.
Note: You can skip this by clicking “Skip” or “Next” without a key, but then you must enter it within 30 days. For Build 7600, entering it during install is recommended to avoid activation hassles. product key windows 7 ultimate 64 bit build 7600 install
Build 7600 is the Release to Manufacturing (RTM) version of Windows 7, finalized on July 13, 2009. It predates Service Pack 1 (SP1), which is build 7601. If you see "Build 7600" on your system, you are running the original RTM version without SP1.
Key characteristics of this build:
Using a product key windows 7 ultimate 64 bit build 7600 install from a reseller or old sticker is legal if the license is genuine. However:
To remain compliant:
Use ProduKey (by NirSoft) on an existing Windows installation to retrieve the key from the registry. If the disc is OEM, contact the PC manufacturer.