[CTD when killing enemy with power attack]

I have the same problem, CTD while attacking NPCs with two handed weapon.. happens when i sneak behind them and try to assassinate them, but i don't have Enhance AI :X

[TUTORIAL: REMOVING UNWANTED MAGIC EFFECTS FROM THE PLAYER]

I am sorry if it's already here but i didn't find it on the main page..

And i am getting really desperate ._.

My problem is just the same as the Ice Wraith ice under character's feet, except it's not from Ice Wraith.

I noticed it after battle with magic anomalies, so i tried to addspell/removespell their skill Ice Bite, but that didn't help also... Before that i was fighting in Labyrinthian the draugirs, but i don't know what could the case be if it would be from them.

Does anyone know? ._.