{{indexmenu_n>03}}

====== Using PC/Mac Lock ======

Once you've installed the software as described in [[install|]], you're ready to use LaCie PC/Mac Lock. Simply register a LaCie USB key with the software, and you can use it to lock your operating system just like you lock your front door.

===== Register Key =====

<note important>**Important info:** You must have set and know your operating system's administrator password in order to install the software. See [[password|]] for details.</note>

  - Click the LaCie PC/Mac Lock icon in the menu bar (Mac) or right-click the LaCie PC/Mac Lock icon in the system tray (Windows). \\ [{{:products:pc-mac-lock:win7:use01.png|Windows Users}}] [{{:products:pc-mac-lock:mac:use01.png|Mac Users}}]
  - In the menu that opens, select **Configure**. \\ {{:products:pc-mac-lock:win7:use02.png|}}
  - The **Register a key** wizard will open. Click **Next**. \\ {{:products:pc-mac-lock:win7:use03.png?500|}}
  - The next screen instructs you to connect a USB key in order to register it with the software. If the key is already connected, dismount it as described in [[unmount|]]. Then reconnect it.  \\ {{:products:pc-mac-lock:win7:use04.png?500|}}
  - In the next screen, type your operating system administrator password (see [[password|]] for details). \\ {{:products:pc-mac-lock:win7:use05.png?500|}} \\ \\ Mac users need to type their admin username and password again in order to finish configuration. \\ {{:products:pc-mac-lock:mac:register01.png?400|}}
  - Once the password is accepted, configuration is complete.

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===== Lock and Unlock =====

Once you've configured a key, locking or unlocking your operating system is as easy as connecting or disconnecting the USB key.

Please note that you should properly unmount your key as described in [[unmount|]] in order to avoid damaging its file system.

===== Disable or Enable PC/Mac Lock =====

To disable or enable the software, select **Disable** or **Enable** in the PC/Mac Lock menu. If you've disabled the software, connecting or disconnecting the USB key will subsequently have no special effect until the software is enabled.

{{:products:pc-mac-lock:win7:use06.png|}}

===== Temporarily Disable PC/Mac Lock =====

In certain situations, you may wish to temporarily disable the software, such as if you need the USB key or port for another task. To do this, select **Disable for 30 minutes** in the PC/Mac Lock menu.

{{:products:pc-mac-lock:win7:use07.png|}}

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===== Unregister a Key =====

If you want to register a different key, you first need to unregister the original key. To do this, select **Unregister key** in the PC/Mac Lock menu.

{{:products:pc-mac-lock:win7:use08.png|}}

You can then register a new key.