New
#1
BSODs - all contain ntoskrnl.exe
I've had my lenovo T420 laptop since August of 2011, and I believe I had one or two blue screens sometime in 2011 or early 2012 (but it doesn't appear on my dump files, so maybe I'm wrong?). But my major blue screen problems started just a month ago.
The History: I had an issue with Mcafee Antivirus where it locked down my internet for a few days (as I later discovered). At the time, all I knew was that internet wouldn't work on my computer. I took my computer to an IT guy and we messed around with network settings (including turning off ivp6) but couldn't seem to get the internet back on track. He concluded that it was a virus.
I ran Super-Anti-Spyware, Combofix, and malwarebytes, but could not find anything serious. Eventually a family member told me that he had uninstalled and reinstalled Mcafee Antivirus and that had fixed the issue. But I was fed up, so i uninstalled my Mcafee and installed free versions of Avast Antivirus and ZoneAlarm. This whole fiasco happened during the week of August 19-25.
As the minidumps show, my blue screen problems began on August 30 and have been occurring with increasing frequency ever since, with about 5 blue screens in the past 2 weeks. The most recent blue screen happened today just as I was uninstalling ZoneAlarm. Tonight, I uninstalled ZoneAlarm (it uninstalled successfully on the second try) and Hamichi, a VPN software.
Other programs: Not sure if my zip file shows it, but other recently installed prorgams include F.lux, intelWireless wifi update, google talk plugin, windows driver kit, bluescreen, microsoft document explorer 2008, update for Evernote, power manager for lenovo, launchy 2.5, intel HD graphics driver on 10/9/2012...etc.
Hardware: In terms of hardware changes, I installed a new stick of RAM this past June. As soon as I get the time, I'm gonna run memtest86+ and post the results here.
Setting: In terms of activities, I'm not sure I'm consistently doing anything when the blue screens occur. They seem to happen randomly.
Summary: I hope this information helped! I'm pretty clueless as to what's going on, but I saw that this was a vibrant community that had helped lots of people and decided to post. If I need to provide additional information, please let me know. I really need to get this laptop back on track.
Thanks for the help, I appreciate it! :)