First, read the English article below.

You can use any web browser on PC or Mac. This open's your YouTube home page, if you're already logged in. If you aren't already logged into YouTube, click Sign in and enter your email address and password to continue. It's in the top-right side of the YouTube page. A drop-down menu will appear. If you have not uploaded a profile image for your account, your profile image appears as a colored circle with your initial in the middle. The drop-down menu has a different layout depending on what page you access it from.  The Settings menu is either halfway down the drop-down menu, or a button that resembles a gear near the top below your username. If you want to change the name of an attached channel, instead click Switch account, click the channel's name, and click the profile icon again. This link is to the right of your name, just below the "Account information" heading. Use the "First" and "Last" text fields respectively to enter your first and last name.  If you want your username to appear as several words (e.g. "Love and Puppies"), you might write the first word in the "First" field and the rest of the phrase in the "Last" field. If you're changing a channel name, this field will simply say "Name" and it will not require a "Last" section. You can also add a nickname for yourself under Nickname. You can display your nickname as part of your name by clicking the downward facing triangle across from Display my name as: and then choose how you want your nickname to be included. It's at the bottom of the name-change window. This changes your account's username (or channel name). 

Now, please write a short abstract for it in Vietnamese. Abstract:
Truy cập vào YouTube. Nhấp vào biểu tượng kênh của bạn nằm ở góc trên bên phải của trang YouTube. Nhấp vào biểu tượng nằm gần cuối menu thả xuống. Nhấp vào tùy chọn Edit on Google hay Chỉnh sửa trên Google. Lần lượt nhập họ và tên bạn vào ô "Last" và "First". Nhấp vào nút OK nằm cuối cửa sổ thay đổi tên. Nhấp chuột tiếp vào CHANGE NAME hay ĐỔI TÊN khi hộp thoại xác nhận hiện ra.