Get
https://obsproject.com/
should look smth like this:
now go to profile, and hit new, give it a name like gw sc recording.
now go to file > settings
dont worry about the stream settings unless you plan to stream your runs on twitch as well, i wont go over setting that up..
Go to output.
Under recording, set the recording path to whereever you want the files to be saved to. Set quality to High Quality, unless you're on a toaster than set it to stream quality. (Can do indistinguishable quality if youd like, no reason to do lossless unless you want your disk I/O to commit suicide)
Recording format: mp4.
Audio wont matter really unless you want to provide commentary as you run. I wont go over it, the default audio settings are fine.
In video, set the Base resolution to the size of your monitor. Then set the output resolution to the settings you want to record at.
852x480 = 480p
1280x720 = 720p
1920x1080 = 1080p
For fps, set it to whatever you want to record, fps determines the "smoothness" of the video in exchange for larger file size. 30 fps is usually all you need. If you want a nice smooth image, go 60 fps, no reason to go higher than that. If yur on a toaster, can go down to 10 fps to help with that.
Apply and Close.
Now, we set up our scenes and sources.
First click the plus icon in the scenes window. Can set the name to whatever you want, usually GuildWars or smth. And add. Now go to sources, right click the panel, select add>window capture, then select Gw. WIndow Match should be fine on window class.
Hit ok, then you can drag and resize the window at will in the main canvas
Now just hit start recording to start, then stop to stop
easy