1. When w3 starts and asks you to migrate files it fails with "not enough storage is available to process this command"
-you probably have a lot of maps and replays (1GB+). Cut and paste them somewhere else, let W3 migrate the emptied folders, then after migrate is successful paste them in appropriate folders in Documents/Warcraft III.
2. While W3 migration is happening it tells you that another process is using some file that needs to be migrated
-migrate Maps, Replays, Campaigns, AI Scripts, Erros, Logs, ScreenShots, Scripts manually, then rerun the migration
3. Can't get max resolution in video settings
-untick the Fixed Ratio option
4. Unable to validate game version
Your windows username contains a non ascii symbol. The solution so far is to rename your windows user if you are brave enough, the safer option is to create a new windows user account.
Rename at your own risk: [url]https://social.technet.microsoft.com/wiki/contents/articles/19834.how-to-rename-a-windows-7-user-account-and-related-profile-folder.aspx[/url]
5. Icons in chat channels are green
-in process of fixing
6. Colors are dark, alttab does not mute sound
-run w3 with Native fullscreen checked
7. Can't run gproxy, file does not exist
-your antivirus probably deleted gproxy.exe, especially Avast likes to do it. Whitelist gproxy.exe and w3l.exe
8. No "Fixed aspect ratio" chckbox in video settings, can't set 16:9 resolution! Set fixed ratio to 0 in regedit manually (see attachement image)