Today I faced an issue in TFS when I tried to Map the project. It said that TFS is already mapped to the c:\ drive and did not let me to map in any of the c drive's folder. I even tried to remove all the workspaces created but still it did not allow. Then I went through the following link which helped me to resolved the problem.
The issue was, we have Virtual machines which may be used by someother person in past and that user might have created a workspace mapping to local drive. I used a software called "Attrice (below link has the link to that software)", which will list all the worspaces "by user", "by date", "by machine name". When I tried to query "by machine name" and "by past date (a year back)", it listed me the old workspace which was mapped by the other user. I deleted and it worked!!!!
http://blogs.msdn.com/b/davidmcg/archive/2007/02/21/team-foundation-server-working-folder-is-already-in-use.aspx
The issue was, we have Virtual machines which may be used by someother person in past and that user might have created a workspace mapping to local drive. I used a software called "Attrice (below link has the link to that software)", which will list all the worspaces "by user", "by date", "by machine name". When I tried to query "by machine name" and "by past date (a year back)", it listed me the old workspace which was mapped by the other user. I deleted and it worked!!!!
http://blogs.msdn.com/b/davidmcg/archive/2007/02/21/team-foundation-server-working-folder-is-already-in-use.aspx
