The answer to this question is a bit complicated and involves a lot of history. To understand the answer, it helps to know a bit about the history of operating systems. In the 1980s, a computer scientist named Linus Torvalds developed the Linux kernel, which is the core of the Linux operating system. Linux was designed to be an open-source, freely available operating system, meaning anyone could modify and redistribute it. At the same time, Microsoft was developing its own operating system, Windows. Windows was designed to be a closed-source, proprietary operating system. It was not freely available and users could not modify the source code.
So the answer to the question is no, Windows is not built on Linux. The two operating systems have different architectures and designs, and there is no direct link between them. However, some of the same concepts and technologies are used in both operating systems. For example, both use a graphical user interface and both have similar networking and security features.
The more interesting question is whether Windows has been influenced by Linux. The answer to this is a bit more complicated. It is true that some of the technologies and ideas used in Windows were first developed for Linux. At the same time, Windows has also influenced Linux. So while Windows and Linux are different operating systems, they have influenced each other over the years. The fact that some of the same concepts and technologies are used in both operating systems is a testament to their similarities.
In conclusion, Windows is not built on Linux, but the two operating systems have been influenced by each other over the years. While Windows and Linux have different architectures and designs, many of the same concepts and technologies are used in both operating systems. Additionally, both Microsoft and Linux have developed features that have been inspired by each other.