BSOD when using a Blizzard downloader

I have reported this issue on their own forum but no one have made any response yet so ill try my luck here.

Each time im opening a Blizzard download i get a BsoD after 2-5 mins, funny enough this has started after i formated my desktop a few days ago, so im blind on what could course this.

Here is the error report

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.
Locale ID: 1030

Additional information about the problem:
BCCode: a
BCP1: 0000000000000008
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF8000280733E
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:

And my Minidump file is attached to this post aswell.