It is an identity within a process that Windows schedules for execution. They share the same virtual address space and system resources.

References:

• https://learn.microsoft.com/en-us/windows/win32/procthread/processes-and-threads

• https://learn.microsoft.com/en-us/sysinternals/resources/windows-internals

Thread

Main Components

• CPU registers state

• Two stacks

• A private area storage (TLS)

• Thread ID

• Security Context or Token

Some of the main components that a thread could have: