Bad music i just got 4gb player.it had some music on it.how can i get rid of it?

The minimum requirements of your Sansa E250 is Windows XP and above and Windows Media Player 10 and above.

If you're using Windows Media Player 10 or above, your Sansa E250 and its contents should appear on the right pane when you click on the "Sync" tab. You can right click on a song and select "Remove". The songs will be erased permanently from the player.

If your songs do not appear on Windows Media Player 10 or above, it is possible that your songs may have been saved on another mode.

Your Sansa E250 comes in 2 modes: MTP and MSC. Songs saved on one mode will not be seen by the other mode, and vice versa.

There are 2 ways to delete songs from your Sansa :
By browsing the folders containing the songs, or by formatting the player.

You can switch modes by navigating your device menu using the following:

Menu >> Settings >> USB Mode

Next, plug your player in your PC and open Windows Explorer. You should first set your Explorer to "Show hidden Files and Folders" by going to the "Tools" menu (located on menu lists on Windows Explorer window), then choosing "Folder Options", then enabling the "Show Hidden Files and Folders" radio button

Deleting Music files under MTP Mode:

1. Your player should appear as a Sansa icon in Explorer as a "Portable Audio Device". Double left-click this icon to browse the player.
2. You'll find a "PPI NAND" sub-folder. Again, double left-click on this sub-folder.
3. You'll find a series of sub-folders, one of which should be titled "Music". Double left-click this to open it.
4. Your music should appear as individual files or folders. Delete this to remove the file(s) from the player

Deleting Music files under MTP Mode:

1. Your player should appear as a Drive letter and entitled either as a "Removable Drive" or as "Sansa "
2. Double left-click on this drive letter to browse the player
3. You may find your music files immediately on this folder, or you'll find a series of sub-folders, one of which should be titled "Music". Double left-click this to open it and view your music files.
4. Delete the music files you want, and they should be removed from the player

Deleting files through Format:

1. Formatting the player erases all files in the player, and oftentimes this is the best option to ensure that all files are removed and any corruption eliminated. Also, it is best to format the player when in MSC mode.
2. When the appears as a drive letter (under MSC mode), right-click on that drive letter and select "Format". On the "Format" pop-up window, click "Start" to begin the format process.
3. Follow the on-screen prompts and safely remove the player from your PC when the "Format Complete" display appears.
4. Unplug the player from the PC and when the player is powered up, the message "No Files" should appear on the player's LCD screen
5. Switch the mode back to "MTP", or continue to use "MSC". Note: It is best to use "MTP" when you are transferring subscription music to the player.

I hope this helps. :)