How to make omitting search criteria

Question

How to ask windows to search for files that not satisfy defined condition. For example I don't need files that has extension log.

Answer 1

Hit Win+F and write in the search name -log

Lets say you have a file appendix.tex and appendix.log to exclude the .log file you should write in the search appendix -log (you can write more than one thing you want to exclude like -log -pdf -png ...)