MacDrive Wont repair Mac volume

[B30W0LF]

I installed MacDrive because my mac partition wont boot up, and i cant reinstall OSX or windows because i need this for school.(I can, but i would like to know if i can just fix the mac partition through windows first) But i noticed you can repair your mac partition, so i tried it. when scanning, MacDrive said that access was denied. anyone know how i can either get past that or repair my mac through windows?

[Mr. Zarniwoop]

Resolve startup issues and perform disk maintenance with Disk Utility and fsck (http://support.apple.com/kb/TS1417)

I would try booting with your OS X install disc and run Disk Utility from there, per the article linked above.

[B30W0LF]

i tried Disk Utility and it said that it fixed all errors. but it still wont go past the blue screen with my cursor on it.