Installed Omega DLC, everything is working, it must be the Appearance DLC pack! Thanks! I hope it all gets fixed, I can't be the only one with this problem!
Have you attempted repairing origin, ME3, and your DLC?
I've used the 'repair' option on ME3 several times, it tells me everything is fine. I've uninstalled ME3 several times and defragged my HDD, it hasn't helped. I've gone through all my DLC and used repair install, everything is fine and dandy apparently. So unless I have an underlying computer issue which has formed over time, then I may have to clean out my computer or find a better one. Though as stated before, ME3 used to work very well on my computer.
Though I'm not sure how to repair Origin but I'm sure if it was, I would have faced this problem a while back.
What has your computer been doing since you last played?
Do you have any new software installed since then?
New Drivers?
New Hardware?
Can you check the Temperature inside your case, such as CPU temp, or GPU temp?
I have found, in general, PC's need to be cleaned/dusted once a month. Your situation may vary depending on environment. (Do you have pets, live near construction, a farm, a desert, etc...)
It's just been sitting here, I turn it off regularly, I have a few things like Origin and steam running along with firefox but that's really it. I don't believe I've installed anything new but new drivers to see if it would fix the option and I don't think I've got any new hardware. My temperature is fine so far and I've cleaned out the computer with a can of compressed air today. It hasn't stopped the problem but my computer in general is much more quiet. I have pets but they rarely come near my computer and I usually clean for dust regularly.
I'm not sure why it persists but everything is in working order, unless the game just disagrees with my computer but since the thing causing the problem isn't obvious and that the game worked before, I'm unsure if it's been a recent patch or something along those lines that has caused the problem but performance has been great until I played recently for Omega.
Try deleting Omega, and playing without it to see if it is still freezing, if it is, try deleting the Alternate Appearance Pack to see if this corrects the issue
To delete them, go to "C:\Program Files (x86)\Origin Games\Mass Effect 3\BIOGame\DLC"
Delete:
Appearance Pack 1
Omega
then go into "C:\Program Files (x86)\Origin Games\Mass Effect 3\BIOGame\DLC\_metadata"
Delete:
Appearance Pack 1
Omega
