Why windows takes so long to start up

IntelliAdmin.com: Why windows takes so long to start up.
http://www.intelliadmin.com/blog/2006/09/why-windows-takes-so-long-to-start-up.html

人總是希望電腦越快越好，尤其是自己用的，上面詳述記載著一些方法。

1. The prefetch cache
2. Hard drive fragmentation
3. Disconnected network drives
4. Spyware & Adware
5. Disable File and Printer Sharing if you do not use

其中第一項是我比較少看到的，清理目錄c:\windows\prefetch下的檔案，並修改機碼(HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters\EnablePrefetcher)為3.
此機碼有4個可能的值，如下：
0 - Disabled : The prefetch system is turned off.
1 - Application : The prefetch only caches applications.
2 - Boot : The prefetch only caches boot system files.
3 - All : The prefetch caches boot, and application files.