Open CurrentVersion Folder and click on DigitalProductId entry in the right-pane to find Windows 10 Product ID. As mentioned above, you will be needing a third part service to convert the coded registry entries in to 25 digit Windows 10 Product ID. Distributed 64-bit unique ID generator inspired by Twitter Snowflake Finally, I wrote a simple sequence generator that generates 64-bit IDs based on the concepts outlined in the Twitter snowflake service. The IDs generated by this sequence generator are composed of - Epoch timestamp in milliseconds precision - 41 bits.
Key Generator For Machine Identification
/etc/machine-id file contains the unique machine ID of the local system that is set during installation or boot. The machine ID is a single newline-terminated, hexadecimal, 32-character, lowercase ID. When decoded from hexadecimal, this corresponds to a 16-byte/128-bit value. This ID may not be all zeros.
The machine ID is usually generated from a random source during system installation or first boot and stays constant for all subsequent boots. Optionally, for stateless systems, it is generated during runtime during early boot if necessary.
The machine ID may be set, for example when network booting, with the
systemd.machine_id= kernel command line parameter or by passing the option
--machine-id= to systemd. An ID specified in this manner has higher priority and will be used instead of the ID stored in
The machine ID does not change based on local or network configuration or when hardware is replaced. Due to this and its greater length, it is a more useful replacement for the gethostid(3) call that POSIX specifies.
This machine ID adheres to the same format and logic as the D-Bus machine ID.
Key Generator For Machine Identifier
This ID uniquely identifies the host. It should be considered 'confidential', and must not be exposed in untrusted environments, in particular on the network. If a stable unique identifier that is tied to the machine is needed for some application, the machine ID or any part of it must not be used directly. Instead the machine ID should be hashed with a cryptographic, keyed hash function, using a fixed, application-specific key. That way the ID will be properly unique, and derived in a constant way from the machine ID but there will be no way to retrieve the original machine ID from the application-specific one. The sd_id128_get_machine_app_specific(3) API provides an implementation of such an algorithm.