Generator | Windows 7 Confirmation Id
The following is a list of potential sections that could be added or expanded:
: If phone systems are unavailable, you can use the Microsoft Support Product Activation Portal or contact a live agent to exchange your IID for a CID. Windows 7 Confirmation Id Generator
For the technically inclined: Microsoft’s activation system (pre-Windows 8) relies on a proprietary variant of Elliptic Curve Cryptography (ECC). The IID is a point on a specific curve. The CID is the result of a private key multiplication. Without the private key—which resides only on Microsoft’s live servers—you cannot compute the CID. The following is a list of potential sections