Truy cập vào địa chỉ https://www.youtube.com/ bằng trình duyệt web. Nhấp vào ảnh đại diện. Chọn Settings (Cài đặt) hoặc. Chọn Edit on Google (Chỉnh sửa trên Google). Nhấp vào biểu tượng trong ảnh đại diện. Nhấp vào ảnh hoặc chọn Upload photo (Tải ảnh lên). Chọn một ảnh và nhấn Open (Mở). Nhấn Done (Xong).

Given the above summary, write a detailed text in English for it.
You can use any web browser of your choice on PC or Mac. If you are not signed in to YouTube, click Sign In in the upper-right corner and sign in with the email address and password associated with your YouTube/Google account. Your profile picture is the circular image in the upper-right corner of the YouTube website. This displays a drop-down menu for your account. If you have not chosen a profile picture for your Google account, your profile picture displays a colored circle with your initial in the middle. The Settings option either appears about halfway down the drop-down menu next to an icon that resembles a gear, or it appears as a gear button below your account name. This varies depending on what page you access the profile menu from. It's next to your account name and profile icon in the Settings menu. This takes you to the "About Me" page of your Google account. Your profile image is the circular image in the center of the banner at the top of the page. It has an icon that resembles a camera in the middle. This displays the "Pick a photo" menu in the pop-up. If you have photos already uploaded to Google Photos or Google Drive, you can select one of those photos as your profile picture. If you want to upload a new profile picture, click Upload photo. If you clicked "Upload photo" this opens a file browser. Use the file browser to find a photo on your computer, click it to select it and click Open in the lower-right corner of the file browser. This uploads your photo and displays it in the pop-up. It's in the upper-right corner of the "Pick a photo" pop-up. This sets the image as your profile picture for all Google products, including YouTube.