Problem? same filename in multiple folders *I* didn't put them there

[rmetal]

There are two files which appear in multiple folders:

   Desktop.ini   and   Thumbs.db

I don't recognize these as anything I have worked with directly and hope it's just a glitch from all the updates I've downloaded; backing up the registry; copying all my pics for backup, etc.....

other info:
Computer is running smoothly
Avast! quarantined a virus last night
scans today by -- Avast!, Superantispyware, Malwarebyes detect no threats.

What (if anything) should I do about them, I have no idea how long they may have been in place   
TIA

[rmetal]

oh, duh, nevermind.....i had 'show hidden icons' turned on.....

 Guess I'm being paranoid now   

I'm just really glad this forum is here!

[Fleexy]

Both of those files are normal.  Desktop.ini stores info about the folder such as custom background, custom tooltip, directory-local file types, and a special icon.  Thumbs.db is a Windows database used to remember view settings (list/details/icons/tiles/thumbnails/filmstrip view) and where/if you dragged stuff somewhere in the window besides the defualt location lineup.  So these files are no threat and no glitch.  My guess is that you recently enabled viewing hidden/system files.

-Fleexy