if i have more accounts on my computer does it slow it down or will it run fine? at the moment i have 5 accounts and my computer is running clow, each account has music on, some more than others. is it best to just have the one account? 
also how can i make a password on the guest account, i read some where that i could but im not to sure, thanks!!!

also how can i make a password on the guest account, i read some where that i could but im not to sure, thanks!!!