Here are the steps on how to show the hidden files in diffirent windows operating systems.
Show Hidden Files and Folders in Windows 7
This applies to all versions of Windows 7.
1. Click the Start button
2. Click Computer
3. Double-click C: drive
4. Click Organize
5. Click Folders and search options
6. Click View tab
o Click to enable Show hidden files, folders, and drives
o Click to disable Hide extensions for known file types
o Click to disable Hide protected operating system files (Recommended) if you want to see system files
(click Yes if a warning dialog box appears)
(click Yes if a warning dialog box appears)
o Click the Apply button, and then click OK.
o Click the Apply to Folders button if it's not greyed out.