Final answer:
The Guest account in Windows has limited privileges, mainly from being part of the Guests and Everyone groups, ensuring temporary users can perform basic tasks while maintaining system security.
Step-by-step explanation:
The Guest account in a Windows operating system environment derives its privileges from being a member of two groups: the Guests group and the Everyone group. The Guests group contains accounts that have limited access rights and permissions, primarily for users who need temporary access to the computer. On the other hand, the Everyone group includes all users who have logged on to the computer, including guests, providing a minimal set of permissions that applies to all users by default. By being a member of both these groups, the Guest account has just enough privileges to perform basic tasks without compromising system security.