I tried using the Write node to connect to the Viewer node and it would not do anything. So I had to delete the Write node. I want to resize my screen window to 1920 x 1080. How can I do that?
The viewer will show whatever resolution (format) it is fed. In this case you are feeding it a resolution of 500x445. If you want it to be 1920x1080 You’ll need to ensure that your solid node is outputting that format. Looking at your comp, that solid node is probably the background and so it should be set to the “project format” option. To set the project format press S to bring up the project settings and set the project format to 1920x1080 (which should also be the default).
Hopefully this gives you the information you need!