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To link your MCP ID to your current Microsoft account, you should reach out to Microsoft Certification Support directly. They will be able to assist you with the process of linking your MCP ID (1206656) to your Microsoft account. Since your certifications were earned a long time ago and were not associated with an email address, providing them with your full name, MCP ID, and current email address will help in the verification process.
You can find more information and contact support through the Microsoft Certification support page.
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