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sybex mcitp microsoft windows vista desktop support consumer study guide exam 70 623 phần 3

Windows Vista là loại tự động khởi động (Delayed Start), mà bắt đầu sau khi tất cả các dịch vụ tự động đã bắt đầu và đặt ưu tiên thread để thấp nhất, làm giảm khả năng dịch vụ sẽ được can thiệp với các nhiệm vụ khác. Điều này có thể hữu ích cho các dịch vụ cần bắt đầu tự động nhưng không phải ngay lúc khởi động, | 74 Chapter 2 Customizing and Configuring Windows Vista FIGURE 2.32 Service Properties TABLE 2.2 Service Commands Command Description net start Starts a service net stop Stops a service net pause Pauses a service net continue Continues a service New to Windows Vista is the startup type Automatic Delayed Start which starts after all Automatic services have started and sets the thread priority to lowest which reduces the possibility the service will be interfering with other tasks. This can be useful for services that need to start automatically but are not required right at startup thus reducing the time it takes for the user to boot the computer and use it. This solves the problem of too many services starting at once many of which are not essential to the function of the computer at startup. In the past this would cause the computer to be unusable because it was so busy just after booting. Smart use of this option can bring the user quicker boot times. Choosing Settings to Optimize Performance 75 FIGURE 2.33 net start command There are certain services such as Event Log and Plug and Play that cannot be stopped through the NET commands or the Service snap-in because they are required to run the operating system. Real World Scenario The Performance Hog Users at ABC Company were complaining that their computers were running slowly. Allen investigated the computers and noted that the hard drive was being accessed heavily even though there was no apparent activity on the computer. The computers had sufficient RAM and should have been performing well. After having a look at the Resource Monitor Allen noted the disk and CPU were being used heavily by a process called indx.exe and that it was interfering with other processes. After a quick search Allen found it was a service set to start automatically called Media Indexer. This service installed with a third-party CD authoring software which used it to index all media files on the hard disk for its own media player. Since