Android needs to develop high performance video graphics capabilities. Without gaming support, Android will find it hard to replace windows as many people still use windows for it’s superior gaming performance and support.

Can I replace Windows 10 with Android?

Android was made to run on different systems than windows. They are incompatible. The easiest way to run android on Windows 10 is to use a virtual machine. I recommend genymotion.

Can I use my Android phone as a PC?

Well you can quickly use an Android phone like a PC if you have: A USB-C or Bluetooth keyboard and mouse. A Chromecast or (other mirroring solution) plugged into your TV.