So made like 4 maps and everything works except one thing and that is that the zombies don't move or go to the windows. I have tried placing pathnodes close and far and I never have any overlapping and I make sure my zombie spawner kvps are correct and copy maps from youtube videos but for some reason the pathnodes dont work and the zombies stand still. Why?

Have you added zones to your map, using info_volume? This tells the game when to activate certain zombie spawners.
If you have done that, make sure that you have added this into your map's .gsc file:
(Replace the word in speech marks to your zone, the next zone, and then the same zone as the second but with "enter_" in front of it.
Make sure the zones have the correct KVPs added to them, or they won't work. 
Also make sure that your door and trigger KVPs are correct.
Use these tutorials to help you with adding zones:

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https://confluence.ugx-mods.com/display/UGXMODS/Ultimate+Guide+to+Zones+in+v1.4+Maps

So made like 4 maps and everything works except one thing and that is that the zombies don't move or go to the windows. I have tried placing pathnodes close and far and I never have any overlapping and I make sure my zombie spawner kvps are correct and copy maps from youtube videos but for some reason the pathnodes dont work and the zombies stand still. Why?

It sounds like something went wrong while compiling the map? If so you have to fix that first because the pathing part will be skipped.

If you have zombies that are behind windows you need to make sure you don't have the kvp script_string find_flesh. If you do they will not move being trapped behind a window, therefore they will stand still due to the fact they can't reach there target (Players) you need to remove that kvp if you have it so then they will spawn and target with node at teh window then once they traverse the zombies targert is the players. Hope this helps and perhaps it could be the reason your zombies aren't moving.

Well, you need to do another step if the barrier where zombies are supposed to go through don't have an actual barrier board.