All the important files and folders are hidden in Windows 7 and Vista. But a very simple technique can make you able those hidden files and folders. You need to follow the steps (along with images) shown below:
1. Click on the Organize button in any folder and select Folders and search options.
2. The Folder Options window will appear. Click on View tab.
3. Now click on the box Show hidden files and folders, or drives. Click on Apply button and then OK.