BSOD Playing League of Legends, Using Skype, MS Security Essentials

Hi Everyone,

I just recently bought a new computer-- an Acer Aspire V3. Right when I got it I manually removed a bunch of bloatware, uninstalled McAfee, and put a lot of my files from my old laptop on here, so I can't identify if my problem is caused by any new software. I did re-download certain programs like MS Security Essentials, League of Legends, a registry cleaner (CCleaner), etc. The version of Skype I'm using came with the computer.

I ran windows update a few days ago but I've been getting BSODs before and after that so I don't think that particular update was the change.

Anyway, I've attached the log files from the SF Diagnostic Tool and I would LOVE if someone could help me out on this. I am a semi-competitive LoL player and it is extremely frustrating to get BSODs every now and then. (They seem to happen roughly 1/10 games right after the loadscreen, but I believe the first BSOD I got was the day I got the computer, when I was moving files around on it, without running League of Legends at all).

If you need any more information let me know. Thank you very much! I really appreciate any help I can get.

edit2: Log file correctly attached now.

edit3: forgot to mention, the screen said "driver power state failure"

My only bump-- I would really appreciate it if someone could take a quick look at the files I posted and give me some sort of idea where the problem is coming from. Like I said, the computer is new so I don't know where to start. Thank you so much.

I downloaded, updated and did a full scan with Malwarebytes. I also updated and scanned with MS Security Essentials afterwards (full scan). Unfortunately (fortunately?) they didn't find any problems.

How likely is it that this is a malware issue that the antivirus didn't catch? What's the best course of action for me now?
Again, thanks so much for your time and help!

Okay, so I ran a windows test of the Hard Drive under properties of C: -> Tools -> Error-checking. This required a reboot and after a few hours of checking it didn't find any problems.

Then I downloaded the HGST Align Tool (my HD is by Hitachi) (the link from Google that took me to the HGST Align Tool was labeled "Drive Fitness Test"). After installing this tool and starting the wizard, the tool would not allow me to select any disks and said there were no errors with any of them. I didn't have to restart my computer and the test didn't take any time at all.

Does this make sense? What now?

I ran SeaTools and everything seemed to work-- I did the Long Generic Test, Short Drive Self Test, and Short Generic Test, and the drive passed all of them. Hmm...

Okay, got it. The problem is so intermittent (it only occurs 1 in every 2 days when I'm using the computer a lot) that this could take a while, but I guess it'll have to do.

By the way, I had to update my Microsoft .NET framework for the scan to work-- could that have been the issue?

Anyway, thanks so much for your help!