A virtual machine is the best way to test a complete operating system within our OS, without the risk or inconvenience of a dual-boot installation. If, however, we want to try Raspbian, VirtualBox or VMware can't emulate the ARM processor. Let's create a Raspberry Pi emulation on Windows with QEMU.
A Raspberry Pi emulation is a great way to try the Raspbian environment without buying a Raspberry Pi or Raspberry Pi 2 first.
But, even if we already own the device, with the Raspberry Pi emulation you can test new software in Raspbian with no risk.