Article: Click the black Terminal icon on the left side of the screen. This will open the Terminal window. You can also press Ctrl+Alt+T to open Terminal. Type in sudo add-apt-repository ppa:teejee2008/ppa and press ↵ Enter. Ukuu is a free program that will find and install the correct kernel for you. Type in the password you use to log into your computer, then press ↵ Enter. You won't see any characters or stars appear while typing. Doing so adds the repository; this may take a few minutes, so don't type anything until the repository finishes adding. Type in sudo apt-get update and press ↵ Enter. The repository will briefly update, after which point you can continue. Type in sudo apt-get install ukuu and press ↵ Enter, then type in y when prompted and press ↵ Enter. Type in ukuu, then press ↵ Enter. If you see a list of commands appear in Terminal, Ukuu successfully installed. Type in sudo ukuu --install-latest and press ↵ Enter, then allow Ukuu to run. Skip this step if you want to use Ukuu's interface to install a kernel. If you would rather browse the available kernels using the Ukuu program, do the following:  Click the "Applications" ⋮⋮⋮ icon in the bottom-left corner of the screen. Scroll down and click Ukuu. Select the Kernel you want to install, then click Install. Enter your password when prompted, then click Authenticate. Click the "Menu" {"smallUrl":"https:\/\/www.wikihow.com\/images\/8\/82\/Android7dropdown.png","bigUrl":"\/images\/thumb\/8\/82\/Android7dropdown.png\/30px-Android7dropdown.png","smallWidth":460,"smallHeight":460,"bigWidth":"30","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an Android icon.\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"} icon in the top-right corner of the screen, then click the "Power" {"smallUrl":"https:\/\/www.wikihow.com\/images\/5\/5d\/Windowspower.png","bigUrl":"\/images\/thumb\/5\/5d\/Windowspower.png\/30px-Windowspower.png","smallWidth":460,"smallHeight":460,"bigWidth":"30","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of a Windows icon.\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Public_domain\">Public Domain<\/a><br>\n<\/p><\/div>"} icon and click Restart in the resulting pop-up window. You can double-check that Ubuntu's installation of your kernel was successful by opening Terminal and entering uname -sr. You should see the version number of the most recent (or, if different, your selected) kernel.

What is a summary?
Open Terminal. Add the Ukuu repository. Enter your password when prompted. Press ↵ Enter when prompted. Update the repository. Install Ukuu. Verify that Ukuu installed. Install the latest available kernel. Install a kernel from the Ukuu program. Reboot your computer. Check your current kernel.