HELP, rootkit virus in winsxs, false positive?

I have been trying to resolve this and looking for answers for what to do, knowing how serious rootkit virus can be.

Last night, I manually started a full scan with Avast and it reported 50 rootkit virus in the winsxs folder. Most of the files are *.dll files with some *.exe.
knowing that winsxs files could be critical to the OS, I didn’t remove the files but unable to move them to chest.

I then scanned the laptop with the latest Malwarebytes Anti-Malware, and reported nothing.
So I scanned with Avast again specifically in the Winsxs folder and full system, both reported nothing.

What should I do next to ensure I’m clean or has the virus stopped any antivirus program to report?

Thanks in advance for helping!

attach OTL and aswMBR logs. http://forum.avast.com/index.php?topic=53253.0

here are the MBam log and OTL log
Thanks

Extras and aswMBR log
Thanks

I will post a screenshot of avast scan log in next post, as I didn’t check record log during that scan with 50 rootkit found

screenshot of avast log

bump

patient :wink:

When did you last run windows updates ? Was it during the Avast full scan ?

Pondus/essexboy, thanks for the replies.

yes, I think window update was running during the full scan or finished update but computer hasn’t been restarted. I probably restarted the computer and re-scanned then nothing came up.