Để ẩn một biểu tượng đã có trong vùng thông báo, nhấp chuột và kéo nó về phía máy tính để bàn cho đến khi một cửa sổ nhỏ sẽ xuất hiện. Sau đó thả nó vào không gian trên từ Customize. | ExpỉainED The Change your view button is available in all Explorer windows though the icon it displays and the view options it offers differ depending on what you re looking at. You can also sort a library s contents in many ways by clicking the drop-down menu next to Arrange by as shown in Figure 3-8. The available sorting options depend on the library. For example you can sort the Pictures library by the month or day a snapshot was taken the Music library by song or artist and the Documents library by author or file type text file spreadsheet and so forth . Figure 3-8. Click Arrange by to change how library contents are sorted. 66 Chapter 3 Working with Files and Folders Modifying a library You re free to customize any of Windows 7 s default libraries by adding new folders to them. For example you might have a folder full of photos on a hard drive somewhere other than the My Pictures or Public Pictures folder that you want to add to the Pictures library. To modify a library follow these steps 1. Right-click its name in the left pane and select Properties. 2. Click the Include a folder button to find another folder you want to add to the library as shown in Figure 3-9. 3. To add additional folders just click Include a folder again and repeat the process. Figure 3-9. You can add or remove folders from any of the default libraries. 67 .WirznBZTT ị T w I i-vrot LL 4. Notice the check mark next to the My Pictures folder in Figure 3-9. j This means the folder is the library s default save location. To change the default save location highlight another folder and click the Set save location button. 5. To remove a folder from a library highlight it and click Remove. The Optimize this library for menu determines the sorting options that are available from the Arrange by menu. You can optimize the library for documents music pictures videos or for general items. ExplainED Adding a folder to a library doesn t change where the actual files are stored and removing one from a