In nearly all cases, Android tablets use ARM processors, not x-86 processors from Intel or AMD. Normally, Windows can only be installed and run on x-86 processors = can't with ARM processors, except for specialized cases like the recent Win 10 S (emulated) on ARM netbooks. Similarly, most Linux distros can't normally be installed and run on ARM processors.
If you have a high-end Android tablet(= at least octa-core ARM CPU, at least 4GB of RAM and large internal storage), you can install Windows on Android in a sandboxed container by rooting the device and using the Limbo PC Emulator, Busybox and VNC Viewer apps. Otherwise, too slow and laggy.
....... For installing Linux on Android, use the Linux Deploy app; ... and high-end Samsung Galaxy Android tablets have the Linux on DeX app.