Although it is considered as one of the most useful characteristics a Windows Vista, metadata may also be a feature indiscreet this operating system (And not only).
Metadata are those more information about Your personal files (Such as, in the most harmless case album from which is extracted a mp3 or composer that song, the date on which it was made a picture si device that was made, etc). Invisible superficial at first glance, can be quite inconvenience if others know where to look (the simplest: right click on File->Properties).
Some files its generates single metadata when they are created, but such information can be Added by users and then (Right click on the file->Properties->Details then let Click on each field separately to add metadata).
But when metadata contains information that you do not want to Sharelook to other users of the PC, most likely you will want to wipe such information. Addition method is reversibleBut if you click on Remove Properties and Personal Information (In the bottom of the tab Details) You will find 2 options to remove personal information: you can create a copy without metadata of that file or You can choose the information on file to delete.
This methods to delete personal information (Metadata) can be used to more many files at once (Select those files, right click on them and follow the same steps described above).