Prefer everything on one page? See the single-page FAQ Guide.
The first step is to download the Ubuntu installation image (an ISO file) from the official Ubuntu website at ubuntu.com. The desktop image is the right choice for most users.
Ubuntu offers two types of releases:
After choosing your version, select your processor architecture. Most modern computers use 64-bit (AMD64). Once selected, the download will begin automatically.
Tip: Verify the downloaded ISO using the provided SHA256 checksum before proceeding to ensure the file was not corrupted during download.
Ubuntu can be installed from either a USB drive (recommended) or a DVD. A USB drive of at least 4 GB is required.
Use one of the following tools to write the ISO image to your USB drive:
Warning: Writing the ISO to a USB drive will erase all existing data on that drive. Make sure to back up any important files first.
Insert your USB drive (or DVD) and restart your computer. You may need to enter the BIOS or UEFI setup to change the boot order so your computer boots from the USB drive before the internal hard disk.
After restarting, remove the USB drive when prompted. Ubuntu will boot to the login screen.
After your first login, Ubuntu may display a Welcome window with guided setup options. It is recommended to:
Ubuntu uses the GNOME Shell desktop environment by default. The main components are:
Ubuntu provides several ways to install and manage software:
The easiest way to find and install applications. Open the Ubuntu Software app from the Dash, search for the application you want, and click Install.
The apt command-line tool provides powerful package management. Open a terminal
(Ctrl + Alt + T) and use:
# Update the package list
sudo apt update
# Install a package
sudo apt install package-name
# Remove a package
sudo apt remove package-name
# Upgrade all installed packages
sudo apt upgrade
Ubuntu also supports Snap packages — sandboxed applications that include all their dependencies. Many popular applications such as Visual Studio Code, Slack, and Spotify are available as snaps.
# Install a snap
sudo snap install package-name
# List installed snaps
snap list
Ubuntu supports a wide range of wired and wireless network adapters. Most connections are configured automatically using NetworkManager.
Click the network icon in the top-right corner of the screen, then click the name of your Wi-Fi network and enter the password when prompted.
Wired connections are configured automatically when you plug in an ethernet cable. No additional steps are normally required.
If your Wi-Fi adapter is not detected, it may require a proprietary driver. Go to Settings → Additional Drivers and install the recommended driver for your device.
Keeping Ubuntu up to date is important for security and stability. Ubuntu notifies you automatically when updates are available via the Software Updater.
To update from the terminal:
sudo apt update && sudo apt upgrade
For a full system upgrade (including new kernel versions):
sudo apt full-upgrade
Tip: It is good practice to reboot after kernel updates to ensure the new kernel is loaded.