Another reason the keyboard should be detachable_Windows

Another reason the keyboard should be detachable is because when there is an incoming call on the  15.6 inches  Windows Laptop/Tablet/Smartphone  hybrid , the user can detach the keyboard from the  15.6 inches display and take the 15.6 inches  display with them and walk to another room within Wi-Fi distance and talk in private ............ eventhough the  15.6 inches  Windows Laptop/Tablet/Smartphone  hybrid (which is connected to a docking station) is doing something in the background , for example :

• uploading a 4 GB video file from the Internet
•  uploading a huge file or a collection of files above 10 GB from the Internet
• printing 50-100 pages of documents to a USB printer
• watching YouTube/Videos/Movies
•  transferring files from one computer to another using USB port  [ 1 2 3 4 5 ]   (work with Windows OS only)
•  transferring files from one machine to another or from one computer to another using Ethernet cable or Wireless or Bluetooth
• installation of application software for example ,  Adobe Photoshop ,  Microsoft Visual Studio , Microsoft Visual Basic , Microsoft  Office , etc.   (work with Windows OS only)
• installation of CAD programs  (work with Windows OS and Linux OS only)