Hi Bevella,
I understand that you were given a 1st generation iPod nano and you would like to completely erase it so you can start clean and sync your own music on to it. The process you want to run is called a restore. The following link is the iPod nano Features Guide that explains the restore process with steps. The restore section is on pages 50 and 51.
iPod nano
Features Guide
http://manuals.info.apple.com/MANUALS/0/MA101/en_US/iPod_nano_Features_Guide.pdf
Updating and Restoring iPod Software
You can use iPod Updater to update or restore your iPod software. Apple periodically updates iPod software to improve performance or add features. It is recommended that you update your iPod nano to use the latest software. You can also restore the software, which puts iPod nano back in its original state.
- If you choose to update, the software is updated, but your settings and songs are not affected.
- If you choose to restore, all data is erased from your iPod nano, including songs, files, contacts, photos, calendar information, and any other data. All iPod nano settings are restored to their original state.
To update or restore iPod nano with the latest software:
- Go to www.apple.com/support/ipod and download the latest iPod Update. The update has the latest software for all models of iPod.
- Double-click the software installation file and follow the onscreen instructions to install the iPod update.
- Connect iPod nano to your computer and open iTunes. The iPod Updater application opens. If you’re using a Windows PC and the iPod Updater application doesn’t open automatically, you can find the updater by choosing Start > All Programs > iPod.
- Follow the onscreen instructions to update or restore iPod software.
Thanks for reaching out,
-Joe