More Windows not genuine after boot scan

Windows 7 Pro, Avast 7.0.1474

I am careful with what emails I open and what I download, etc. etc.
I was looking at a pdf from a scientific organization (calacademy.org, to be exact, this one unless they’ve changed it since last night: http://research.calacademy.org > SSI >, the Advisers & Projects pdf, in Firefox, and in the middle of it, Avast gave an alert, something about malware. I had a bunch of other tabs open, the same ones I’ve had open. Avast suggested running a boot scan.

During the overnight boot scan, it found 7 suspect files, which I put into the chest (however, there are 8 dated from last night). I’ve attached a screen shot of the chest; the last 8 are the files in question. Four days ago, I disabled Java and updated it to the most current version; I also did Adobe), and six days ago I updated Windows.

When the boot scan was finished and after I logged into Windows, I got the same message in the lower right that many others have gotten, that my copy of Windows is not genuine. I purchased this laptop from Dell and have never had an issue with that. I ran the Microsoft Windows validation online, and it says that it is genuine.

I have not rebooted or done anything else in the way of installations/removals except to install the control in IE to run the validation.

I’d appreciate some help with this–I don’t want to unnecessarily mess things up (or pay $69 for someone else to mess it up). None of these eight files were in places that I’d expect to cause an issue like this (but I’m obviously not a virus/malware expert). Do any of these look like false positives? And is there anything else to do about the Windows not genuine message?

Thanks.

Radarrab welcome to Avast! Forums.

Follow this guide: http://forum.avast.com/index.php?topic=53253.0

and attach logs for AdwCleaner, malwarebytes’, OTL, and aswMBR.exe. Do not copy/paste. See “Attacments and other options” below the box when writing your reply.

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