For any lookup, always start at or support.microsoft.com with your Microsoft account credentials.
Confirm the exact generation, model, and configuration of hardware. This is helpful when buying or selling used hardware. microsoft serial number lookup
For physical devices, the "Serial Number" is usually a 12-digit code used for warranty claims, service requests, and registration. For any lookup, always start at or support
If the device will not turn on:
Finding the product key for Microsoft Office depends on how you purchased it. For any lookup
Book official repairs or order replacement parts through the Microsoft Hardware Support Portal. Step 1: Find Your Microsoft Serial Number