Translations by Akira Tanaka

Find the application that you want to remove by using the search box, or by looking through the list of installed applications.

You may be asked to enter your password. After you have done that, the application will be removed.

Files that you can recreate easily. For example, if you are a programmer, you don't have to back up the files that get produced when you compile your programs. Instead, just make sure that you back up the original source files.

Bluetooth is a wireless protocol that allows you to connect many different types of devices to your computer. Bluetooth is commonly used for headsets and input devices like mice and keyboards. You can also use Bluetooth to <link xref="bluetooth-send-file">send files between devices</link>, such as from your computer to your cell phone.

Before you begin, make sure Bluetooth is enabled on your computer. See <link xref="bluetooth-turn-on-off"/>.

Make the other Bluetooth device <link xref="bluetooth-visibility">discoverable or visible</link> and place it within 10 meters (about 33 feet) of your computer. Click <gui>Continue</gui>. Your computer will begin searching for devices.

I can't connect my Bluetooth device

There are a number of reasons why you may not be able to connect to a Bluetooth device, such as a phone or headset.

Some Bluetooth devices block connections by default, or require you to change a setting to allow connections to be made. Make sure that your device is set up to allow connections.

Check that Bluetooth is turned on on the device you're trying to connect to. For example, if you're trying to connect to a phone, make sure that it's not in airplane mode.

If you don't want to be connected to a Bluetooth device anymore, you can remove the connection. This is useful if you no longer want to use a device like a mouse or headset, or if you no longer wish to transfer files to or from a device.

Send a file to a Bluetooth device

You can send files to connected Bluetooth devices, such as some mobile phones or other computers. Some types of devices don't allow the transfer of files, or specific types of files. You can send files in one of three ways: using the Bluetooth icon in the menu bar, from the Bluetooth settings window, or directly from the file manager.

To send files directly from the file manager, see <link xref="files-share"/>.

Send files using the Bluetooth icon

To send more than one file in a folder, hold down <key>Ctrl</key> as you select each file.

Select the device which you want to send the files to and click <gui>Send</gui>.

The owner of the receiving device usually has to press a button to accept the file. Once the owner accepts or declines, the result of the file transfer will be shown on your screen.

Select the device to send files to from the list on the left. The list only shows devices you've already connected to. See <link xref="bluetooth-connect-device"/>.

You can turn Bluetooth on to use Bluetooth devices and send and receive files, but turn it off to conserve power. To turn Bluetooth on, click the Bluetooth icon in the menu bar and click <gui>Turn On Bluetooth</gui>.

You can turn Bluetooth on to use Bluetooth devices and send and receive files, but turn it off to conserve power. To turn Bluetooth on, click the Bluetooth icon on the top bar and switch <gui>Bluetooth</gui> on.

Many laptop computers have a hardware switch or key combination to turn Bluetooth on and off. If the Bluetooth hardware is turned off, you will not see a Bluetooth icon in the menu bar. Look for a switch on your computer or a key on your keyboard. The keyboard key is often accessed with the help of the <key>Fn</key> key.

Whether or not other devices can discover your computer.

What is Bluetooth visibility?

Bluetooth visibility simply refers to whether other devices can discover your computer when searching for Bluetooth devices. When Bluetooth visibility is turned on, your computer will advertise itself to all other devices within range, allowing them to attempt to connect to you.

Each device can have multiple profiles assigned to it, but only one profile can be the <em>default</em> profile. The default profile is used when there is no extra information to allow the profile to be chosen automatically. An example of this automatic selection would be if one profile was created for glossy paper and another plain paper.

Changing controls or internal settings that it has

Whole-screen color correction modifies all the screen colors on all windows.

An online print-shop where photos are uploaded, printed and sent to you

Photos from a digital camera stored on a memory card

Add or remove a contact in the local address book.

Unlink contacts

When you run <app>Contacts</app> for the first time, the <gui>Contacts Setup</gui> window opens.

This will work only if you have an existing <app>Evolution</app> account. Otherwise, a window will appear with the necessary steps for adding your first account.

Check your hard disk for problems

Check your disk's health using the Disks application

What if the disk isn't healthy?

Even if the <gui>SMART Status</gui> indicates that the disk <em>isn't</em> healthy, there may be no cause for alarm. However, it's better to be prepared with a <link xref="backup-why">backup</link> to prevent data loss.

If the status says "Pre-fail", the disk is still reasonably healthy but signs of wear have been detected which mean it might fail in the near future. If your hard disk (or computer) is a few years old, you are likely to see this message on at least some of the health checks. You should <link xref="backup-how">backup your important files regularly</link> and check the disk status periodically to see if it gets worse.

If it gets worse, you may wish to take the computer/hard disk to a professional for further diagnosis or repair.

Remove all of the files and folders from an external hard disk or USB flash drive by formatting it.

If you have a removable disk, like a USB memory stick or an external hard disk, you may sometimes wish to completely remove all of its files and folders. You can do this by <em>formatting</em> the disk - this deletes all of the files on the disk and leaves it empty.

Make sure that you have selected the correct disk! If you choose the wrong disk, all of the files on the other disk will be deleted!

In the Volumes section, click <gui>Unmount Volume</gui>. Then click <gui>Format Volume</gui>.

In the window that pops up, choose a filesystem <gui>Type</gui> for the disk.

If you use the disk on Windows and Mac OS computers in addition to Linux computers, choose <gui>FAT</gui>. If you only use it on Windows, <gui>NTFS</gui> may be a better option. A brief description of the <gui>file system type</gui> will be presented as a label.

Give the disk a name and click <gui>Format</gui> to begin wiping the disk.

Browse files and folders

Copy or move files and folders

These instructions apply to both files and folders. You copy and move files and folders in exactly the same way.