can't boot safe mode, hangs on aswrvrt.sys

[essexboy]

Download the attached Fixlist.txt to the same location as FRST
Run FRST and press Fix
On completion a log will be generated please post that

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Just got home, will try some ram switch out shenanigans.  I did a memcheck from the bios and from the windows recovery, both said it was fine, but it's an easy thing to try...

Never had a conflict with spybot before, I have an old version that only runs when I ask it to.  I will let you know if I can get to safe mode with any combinations.  Removal of Avast or spybot could happen if I did, but at this point I am at command prompt only.

I will do the fixlist.txt jam, and attach log.

Ya'll are amazing, thanks for the help on this.

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Fixlog.txt is attached.

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Fixlog.txt is attached.

So Essexboy deleted (not same as uninstall since PC cannot boot) your Avast so hopefully any Avast items are removed as boot conflict.
Can you boot your PC now ?

If so, then I'd do a full clean uninstall of Avast: A How-To link: https://forum.avast.com/index.php?topic=143284.0
I'd also do a clean uninstall of Spybot.....do a read here: http://www.safer-networking.org/faq/how-to-uninstall/
Then I'd do a clean install of Avast.
IMHO.....I'd then install:
MalwareBytes: https://www.malwarebytes.org/antimalware/premium/
CryptoPrevent: http://www.foolishit.com/vb6-projects/cryptoprevent/
.....both have free versions which are fine.....BUT, the paid version (Pro) of MBAM works fine as real-time protection with Avast.
This is my combo......along with good surfing, email opening, and file downloading practices.
Essexboy is true expert in this field......but above is my combo of easy, cheap, works great, easy to manage.

Oh Yeah......one last thing........
I don't have a restore point to go back to...drat.  Will take the time to do that in the future.
When you get your system all clean and running make sure you enable Windows System Restore and check in scheduler it does daily creation points.
I also posted in the How-To thread above about offline imaging of your PC....I referenced a free package.....Macrium Reflect.
This is your catastrophic fallback......not only items like this but also WHEN, not if, your HDD dies down the road.

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Well, did the fix, and can't start normally. 

Will try ram swaping, 4th of july craziness has consumed my office.

Window's Systo Restore...that's some hot stove learning, got it

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Well, did the fix, and can't start normally. 

Ugh....not good......where does it stop now when you try to boot ?....I assume not on aswrvrt.sys.
Any chance to get into Safe Mode now ?

[essexboy]

Does it load if you only have the old RAM in the slots

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Does it load if you only have the old RAM in the slots

Good thought.........plus, OP mentions "it crashed with 12GB".
W7 64b Home Premium allows for up to 16GB but 12GB can be an odd config....meaning not sure how OP's system is setup for banks, addressing, dual channel, etc....perhaps for example OP has original 4GB (2 x 2GB) and added 8GB (2 x 4GB)....if so I'd do some reading on the PC's ability & slots for using this config.....but first I'd try Essexboy's thought and see if original 4GB works.
If it does then I'd read your PC's manual on valid memory configs but if it was me I'd go with the 8GB in dual channel mode or get another 8GB and get to 16GB.

[REDACTED]

Well, put the two 4 GB in the correct slots...I had messed up the dual channel layout.  Dumb.

Reinstalled Windows 7, and so far it's rock solid.  Lost some data but learned alot.

Thanks for all the help and advice!  Makes me love Avast even more...it was a ram thing in the end but you guys sent some good love my way, as volunteers.  May your positive karma return to you.   

[essexboy]

Glad you sussed it out