Hello and Welcome to LinuxQuestions,
If your notebook comes with an operating system preinstalled you can use it to download an image of the Linux distro you want. Then, assuming your notebook doesn't have CD/DVD station, make a USB bootable drive of the image you downloaded using a free tool like
Unetbootin. Once that's done, reboot your notebook from the USB drive and install your favorite Linux distro.
Kind regards,
Eric