Delete demo files on Sandisk c150?

format the player once and virus will be gone for good...

easiest way is to hook it up to your pc, go to start, my computer, then find the sansa - it should have a folder that says music, go into that folder and delete what you want deleted and add what you want to add... that's the easiest way

Open Windows Media Player 11 and switch the Library view to Photos (by default, it is usually set to Music - just click the musical not icon and a drop-down will ocme up that says "Photos"

To delete files from your mp3 player using Windows Media Player 10:

http://www.microsoft.com/windows/windowsmedia/knowledgecenter/mediaadvice/0085.mspx#EDF

To delete files from your mp3 player using Windows Media Player 11:

My Directions:

1. Connect your mp3 player to the computer

2. Open Windows Media Player

3. Click on the icon of your Mp3 player on the left-hand side of the Library

4. Click on the Songs, Tracks, or other Music Folder

5. Find a song or songs that you want to delete

6. Left-click the song once to highlight it

7. Press the “Delete” button on your computer’s keyboard

Sounds like you need to reset it, or possibly do an emergency reload of the firmware (which will clear the contents). Details can be found here

To delete songs from your device follow the steps below
You have to make sure that the device is on MSC mode...then make sure your device is plug in to the computer..Then go to programs - accesories - windows explorer, find the SanDisk in my computer, go to media, music and delete them from there.
Either under sync panel in your windows media player it will show your music when it's connected. just click the plus signs for what song you need to get rid of, right click and click delete.
To format it..on your device..go under..menu, setting and there should be a format option option there..let me know if that doenst work for you...
Hope this helps

P.S.Please rate accordingly...
Thank You
Computerrep

go to my computer when it is plugged up and delete the music from the harddrive of the player.

First turn on the palyer and change the usb mode to MSC and when you connect it the the computer it should show up as a flashdrive type thing. right click on ita and select format make sure the when you format it it is going to be formatted to FAT32 type it will delete every thing on the player including those files you said couldnt be deleted

The Insignia NS-DA2G needs to be placed in File & Folder mode, and you'll need to have your mac show you all files on the device. Macs will create a smaller file that starts with "._" that contain very little information, but can cause problems with Windows based or Windows preferred devices. These files are not ignored by the PC or certain Windows optomized devices. You should erase these files for the unit to perform normally.

If you are unable to delete these files, you can re-format the device to FAT-32 and that will erase all information on the device. You shouls also hit the reset button (located next to the "HOLD" switch) for about 5-10 seconds to clear the internal settings.

Sounds like you formatted your MP3 using windows explorer....in that case you need to reinstall the firmware on the device and once you do that...you should be able to transfer the songs to the device...

When I wanted to delete songs i just treated it like a USB stick, (if you drag the songs ontoto load them) then you can go into it to see what songs are on it, then just right click and press delete. Thats wat i did on mine and It worked fine i have an Sandisk e130. but just use it like u would a usb.