What should do next after installing VirtualBox for Genymotion?
Run the Genymotion installer you downloaded, follow the wizard to choose the install folder (default C:\Program Files\Genymobile\Genymotion), create shortcuts, and finish the setup. After installation, reboot the PC, launch Genymotion, sign in, and create a virtual device from the device catalog Get Started with Genymotion Desktop Genymotion Desktop download.
Make sure hardware virtualization (VT‑x/AMD‑V) is enabled in BIOS and Hyper‑V is disabled to avoid conflicts with VirtualBox Windows – Unable to start the Virtual Device.