- 删除Visual Studio Online的项目
http://taslimi.me/how-to-delete-a-team-project-from-tfs-online-tfs.visualstudio.com
run visual studio tools command prompt tools. make sure you open the x86 version as x64 version wouldnt work.
and then run this command:
tfsdeleteproject /collection:https://YOUR-ACCOUNT-URL.visualstudio.com/DefaultCollection "Your project name"
if required this will prompt you to login with a Microsoft Account.