If your mouse is glitching, keyboard shortcuts can help you navigate Windows efficiently. Use Ctrl + Tab to move through tabs, Ctrl + Alt + Tab to cycle through running applications, and the Win key to open the Start menu. F5 refreshes a page, Ctrl + Alt + Delete brings up Task Manager, and Alt + F4 closes apps. Ctrl + S saves your work, Ctrl + Z undoes actions, Win + L locks the screen, and Win + E opens Windows Explorer to browse files.