Are you able to take a screenshot of the Avast Error message and attach it to your reply, see attached image.
Lots of hits on the tumgir.iso file -
https://www.google.co.uk/search?q=tumgir.isoAlso the spelling in this file name looks suspect with a lower case i (India) rather than an a lower case l (Lima) as in tumblr.iso (as it is hard to differentiate between the two). This is a common tactic to confuse.
1. Have you actually tried run this iso file ?
If not I wonder why it might be impacting on Microsoft Word.
2. Presumably Avast alerted at this point ?
A screenshot of that alert could have clarified - However if Avast sent this to Quarantine the location information should be there.
You say that location given as Johane/downlaods/tumgir.iso as I would have expected to see (\ rather than /) C:\Users\Johane\downlaods\tumgir.iso which is a usual windows directory path and not, Johane/downlaods/tumgir.iso which would normally be internet path delimiters.
Unfortunately there isn't much information to go on, so my reply is somewhat vague.