Xbox 360 Dawnguard is killing my NPCs :(

[Curious Mew]

I met the dreaded level cap in Skyrim and decided to start with a new character. This time around I have downloaded Hearthfire and the Dawnguard DLC, which so far has been quite a refreshing experience

I'm level 10 at the moment, but I've suddenly noticed this annoying a** Orc running around trying to grab my attention about the Dawnguard DLC. It seemed that immediately after the Dawnguard quest had initiated, a day had passed and I noticed a dead vamp on the ground in Whiterun. A nearby guard had suggested there were vampire problems, and I immediately realized the vamp on the ground was directly related to the death of my beloved blacksmith, Arianne Avenicci.

This is unacceptable. I like her character and depend on her for selling/buying, etc. I'm not interested in uninstalling the DLC, in doing so I'm afraid I might glitch or lose inventory/items/areas associated with the content of that DLC.

So my question is, how can I avoid the DLC without uninstalling it? I've tried hunkering low and avoiding the guards (they can start the quest too), and I still notice the vamps in the daytime. This quest is quickly becoming an unexpected nuisance. Even worse.. I'm not even sure the quest is the reason for the killings, it could be that I finally reached a level that triggered the madness. Please help.

 

[AbsolutGrndZero]

Yeah, you pretty much need to do the questline and stop the vampires for the killing to stop. I do agree it can be kind of annoying. That's really what I'd recommend. Do the quest line... and pray you don't reach a bug like I have where you get stuck... unless I can find a way to fix it, this is game breaking cause well... eventually the vampires will kill everyone in my game as I can't stop them.

EDIT: Well, I deleted Dawnguard. Loaded my save. Re-Saved. Then reinstalled Dawnguard. I had to start over with it's quests, but I got past the problem spot (was this quest to help fight a bear...the bear wasn't in the cave he was supposed to be in, even after waiting 31 days for the cave to respawn... luckily it's a "radiant" so I was able to get a different cave 2nd time)

 

[MrDSL]

Yeah it starts at lvl 10 and I don't see any way around it besides doing the quest line or uninstalling the dlc. Its very annoying..

I keep saves handy and fast travel to stables first etc.