To get a full idea of how to install a package follow this guide which shows how to install Skype.
The update process can take some time to complete and some steps may take longer than others.
When people first start to use Ubuntu they will use the Ubuntu Software Manager to install software.
The real reason why Canonical and Microsoft brought Ubuntu to Windows 10 was to enable system administrators and developers to use Bash and other Linux shell programs, such as make, gawk and grep, on Windows. A Guatemalan programmer who goes by the Git Hub handle Guerra24, has "managed to run Unity [Ubuntu's default desktop interface] inside WSL, this shows that is fully capable of running an entire Desktop Environment."This isn't easy to do, and it's a long way from being a complete Linux desktop, but it's a start.
Linux users, being natural hackers, immediately started working on bringing Linux graphical desktops to Windows Subsystem for Linux (WSL). If you want to run the Ubuntu Linux desktop in Windows 10 for work, I recommend you do it via a virtual machine (VM) program such as Oracle's Virtual Box.
Once installed, you'll be running a userspace version of Ubuntu 14.04 on top of WSL. It may look like Linux and squeak like Tux, the Linux penguin; but it's not Linux.
That's because the Ubuntu userspace is running not on a Linux kernel, but WSL.
Without D-Bus, many Linux desktop graphical programs don't work that well, if, at all. This will include end-user programs such as Libre Office, The next instruction installs the Unity desktop.
WSL does, however, support the TCP networking protocol and a Reddit user named Sha Rose has found a way to make D-Bus use tcp in place of sockets. The final two commands install, Compiz, an Open GL graphics composting manager and its front-end ccsm.
It is also worth checking out the man pages for dpkg and apt-cdrom.