By default vista shows all the drives, files and folders in thumbnail view. You can disable this and make it back to folder view. Follow the steps below to disable the thumbnail preview.
1. Click on the Start button >All Programs, right above the search box.
2. Click on the Accessories folder and then the Windows Explorer link.
3. Inside Windows Explorer, click on the Organize button and choose Folder and Search Options from the menu.
4. In the Folder Options window, click on the View tab.
5. Under the Files and Folders heading, check the box next to Always show icons, never thumbnails. Click the OK button.
Now the thumbnail preview is disabled. You’ll not see the thumbnail view anymore in windows explorer.
