Please help !

[Shelby94]

To start off I'm not great with technology but I try to learn.
Okay so I installed Microsoft vista to my mac air using bootcamp I have no idea how I did it but anyway I ended up not using it and just left it for a few months, all of a sudden only windows starts, mac won't. every time I hold down options trying to switch back to mac the screen just stays black but when I just turn it on it goes straight to Microsoft again. I have also tried holding c when starting up and tried holing control option command shift. All have the same result of the screen just staying black. Please help me I have no idea what to do?

 

[Consultant]

1. Did you backup using Apple's build in Time Machine?
2. Is your computer under warranty?

 

[Verix]

Seems very odd. Install bootcamp utilities on the windows side if you haven't yet, in there is an option to boot to Mac OS X. Not sure that'll do the trick though, since what you are describing sounds like something broke somehow.

Apple is known for their service, if things are getting complicated better get help. As was just asked, is your computer still under warranty?

 

[Shrink]

To start off I'm not great with technology but I try to learn.
Okay so I installed Microsoft vista to my mac air using bootcamp I have no idea how I did it but anyway I ended up not using it and just left it for a few months, all of a sudden only windows starts, mac won't. every time I hold down options trying to switch back to mac the screen just stays black but when I just turn it on it goes straight to Microsoft again. I have also tried holding c when starting up and tried holing control option command shift. All have the same result of the screen just staying black. Please help me I have no idea what to do?

Just a suggestion...

If you make your title a bit more informative, you will get more useful and helpful responses, and also allow those who can't help to save some time.