How to Show or Hide All Hidden Files, Folders, and Drives in Windows 7

Through Folder Options

NOTE: This option only affects the current user.

1. Open Folder Options.

2. To Show Hidden Files, Folders, and Drives
NOTE: This will also allow hidden drives to show despite if Hide empty drives in the Computer folder is checked.

A) Select (dot) Show hidden files, folders, and drives. (See screenshot below)

B) Click on the Apply button.

3. To Don't Show Hidden Files, Folders, and Drives

A) Select (dot) Don't Show hidden files, folders, and drives. (See screenshot above)

B) Click on the Apply button.

4. To Show Protected Operating System Files
NOTE: For example, desktop.ini files.

A) Do step 2.

B) Uncheck the Hide protected operating system files box. (See screenshot below step 5B)

C) Click on Yes to confirm. (See screenshot below)

D) Go to step 6.

5. To Hide Protected Operating System Files

A) Do step 3.

B) Check the Hide protected operating system files box. (See screenshot below)

6. Click on OK. (See screenshot above)