If one of these programs will not kick the iPod out of recovery mode then you will have to restore via iTunes
RecBoot may have problems on 64X windows, then try:
For MAC or PC
Installs blootware on PC too
For how to restore:
To restore from backup see:
If you restore from iCloud backup the apps will be automatically downloaded. If you restore from iTunes backup the apps and music have to be in the iTunes library since synced media like apps and music are not included in the backup of the iOS device that iTunes makes.
You can redownload most iTunes purchases by:
As I said, if one of the program in my previous link will not kick the iPod out of recovery mode (The iTunes and USB plug icons indicate recovery mode) then you will have to restore and thus erase the iPod.
That happens sometimes and thus you should always periodically backup your iPod especially before updating.
You MAY be able to get some info from the restored iPod via