We have Windows 8 developer preview here for sometimes now and from my experience, I should say it is a fast, secure and user-centric OS. As we know, it brings new look and new features to ourcomputer. For example, the task manger in Windows 8 has a new look and added functionalities.
Now the task manger (press Ctrl + Alt + Del to enable) has two type of interface – one is simple that shows only running apps, which makes you easy to mange (terminate) a running app. Another is more detailed task manager (enable by clicking more details option) that gives comprehensive details (see screenshot above).
A new addition to the Windows 8 task manager is an option to control the start up items. Just click the Startup tab to see the programs running at Windows startup and its impact. Usually, too many items definitely will increase boot time.
From Startup tab, you can easily disable or block unwanted applications automatically launching at Windows startup. Then reboot your PC.