yes you certianly can
yes,you can
no you can not, it doesn't work that work that when you delete the file that has the certain Pokemon you put in the pokewalker you wouldn't be able to send to the new game. you'd have to reset the pokewalker and delete all data in it. (including the Pokemon)
You will need to transfer the data back. Please see the related link below.
destroy your pokewalker
At the title screen, press Up+Select+B. It will ask you if you want to delete your data. Note that all Pokemon on your pokewalker will be deleted also.
You can't delete the data on the pokewalker it only works on the heartgold or soulsilver versions that you bought it with sorry. don't listen to this retard(no offence)you can delete the data,by simply pressing down+X then click the L button,it will show a warning,commform it,then boom that's how you delete a pokewalkers data hope it works.
If you reset your pokewalker your Pokemon will go and all your data will be deleted. That includes the steps places and watts. DONT BOTHER DOING IT UNLESS YOUR HAVE STARTED A NEW SAVE AND THERE IS A POKEMON ON THE POKEWALKER WITH A POKEMON ON IT!!!
you just need to go on your Pokemon heart gold/Pokemon soul silver and when you get to the intro press select,B and up,hit yes to everything then turn your game off
you open connect to pokewalker, you press down (and hold it), after that you press X (and hold it), the same with L
You can reset your PokeWalker from the DS. See the instruction manual that came with your game for instructions.
When the screen says, "This Pokewalker has already been registered" or something similar, it means that Pokewalker has been registered to a different game card. In order to send your Pokemon on a stroll with that Pokewalker, follow the instructions below. On the menu screen, select "Connect to Pokewalker". This will take you to the Pokewalker menu. On this screen, hold the DOWN button, the X button, and the L button. This will give you a warning to reset everything on the Pokewalker. Select Yes, and follow the instructions given to reset all the data on the Pokewalker. This will not delete your Routes, however. Afterwards, follow the on screen directions to register your Pokewalker again. This will allow you to send Pokemon on a stroll in the Pokewalker again. If your Pokewalker gets broken or lost with a Pokemon on a stroll, on the Pokewalker menu, hold the UP button, the SELECT button, and the R button to force your Pokemon back into it's PC Box in the HeartGold or SoulSilver game. Take note you will not receive the items and Pokemon you found.
It's impossible to get more than one Pokemon on your pokewalker unless you have two pokewalkers connected to your game then you could have one on each