By default, you may or may not see all the filters available in Photoshop CS6. Let’s bring them all back in the Preferences.

In Windows, go to Edit > Preferences > Plug-Ins

Mac: Photoshop > Preferences > Plug-Ins

Filter Preferences

Be sure “Show all Filter Gallery groups and names” is checked. Click OK.

You should now have all the original filters in Photoshop!