How to set the default location when win7 Explorer starts?

How to set the default location when win7 Explorer is started? I am not used to it. Win 7 Explorer always opens the library by default. I still like the Explorer to open the tree directory, for example, C: is enabled by default.
Before XP/Vista puts the quick launch toolbar on the taskbar, which is a common shortcut. I just need to modify the properties of the Explorer shortcut and set the starting position. Now Win 7's taskbar is the Explorer that is nailed to the taskbar. It's not the kind of quick launch toolbar. I don't know how to set his starting position. It's useless after right-clicking. Open default. Still a library.
At the moment, when I want to open the tree directory, I can only point directly to the computer in the start menu. How do I pin the computer to the taskbar? Even if I open the computer first, then nail it. Dead, the next time you open the button through the nailed button. Thank you.
Answer: According to your description, my understanding of this problem is: how to point the resource manager in the toolbar to the computer instead of the library.
You can modify it to point to my computer by following the steps below:
1. Right click on the icon of Windows Explorer and the menu will expand
2. Right click on Windows Explorer in the menu again. Click on Properties.
3. Replace the following string in the target column
%SystemRoot%explorer.exe /e,::{20D04FE0-3AEA-1069-A2D8-08002B30309D}
4. Click OK
The next time I press this button, my computer will open.
金敏胤 Microsoft Global Technical Support Center
There is no way to create a resource manager startup shortcut. In other words, you cannot define Winkey+e, the folder that opens after startup.