Originally Posted by Yugesh Gowda
I got trouble with windows7 so i reinstalled it...
but now there is no option to select OS at the start up...
Well, you installed Mint inside
Windows using Wubi. So when you reinstalled Windows, you effectively removed Mint. I am afraid Mint is gone. Wubi was never meant for long term installs anyway. Wubi was ony ever intended for people to try out Ubuntu.
Why not learn how to do a real linux install to a dedicated linux partition on your hard drive?
Here is a great site to help you dual boot Ubuntu and Windows: http://members.iinet.net/~herman546/