I just restarted my character so i could do a few quests differently, but forgot about the vamp spawns in towns

as a 67 level character in my old game, killing them before the killed npcs was no problem, but at my low level it just cant be done in time

so if i just deleted dg off my 360s hd so i could redownload it when im at a higher level and save npcs, would this cause any damage or bugs to appear in my current saves? i just dont want the game to spaz out from not being able to deal with a chunk of programming just vanishing.

I never tried it, but I doubt it would load saves with content that was no longer available, but you never know, they could become corrupted. I have two current characters who have not started Dawnguard yet, they have no problems with vampires spawning in towns. Did you start Dawnguard with your new character?