To install Adobe Photoshop, visit the official website download Creative Cloud, install Photoshop, and sign in. Open Photoshop, create a new project and familiarize yourself with the interface—Toolbar (left), Layers Panel (right), and Menu Bar (top). Learn basic tools like Move (V), Crop (C), Brush (B), Eraser (E), and Text (T). Import images, resize them (Ctrl+T), adjust brightness (Image > Adjustments), and undo mistakes (Ctrl+Z). Save work in JPEG, PNG, or PSD as per your requirement.