Apple MacBook Air "white screen logo" Questions

when i turn on my macbook air i just see a white screen and an apple logo and a spinning circle. did you install anything new or damage your comp?

...white screen with the apple logo and a rotating progress bar, then after a few minutes turns off by itself. it does not respond to any keys and does not turn off when the on/off button is pressed, ...

...white screen appeared on the screen with the apple logo, then the wheel started spinning for hours and it doesnt turn on, i wonder how can i fix it? ---i tried holding the power button and turning it ...

...white screen will appear, but the apple logo never shows up. It just sits there with the white screen, and my main screen never loads. after waiting a while, a folder logo where the usual apple logo ...

...white screen will appear, but the apple logo never shows up. It just sits there with the white screen, and my main screen never loads. after waiting a while, a folder logo where the usual apple logo ...

...white screen shows at start up, then apple logo , then circle with a line thru it, won't proceed past this screen you're hard drive seems to crash. Hurry! Change you're Hard drive and Ask a ...

white logo screen with the circular icon spinning. Have removed battery and depressed start up button until a loud beep occurs but still nothing I had a problem with my hard discs. That's where I got,

...White screen appears and doesn't go away. Pram and smc have been reset multiple times. startup and regular sound White screen appears but no apple logo appear , 1) smc have been reset multiple times. ...

...application by clicking the apple logo in the upper left corner of your screen and clicking system preferences. Then, you would click desktop and screensaver and you can select the one you

white screen and does not load the OS. Any ideas how to fix? Dose the apple logo comes and the spin or no ? if its coming permission issues if dosent come the apple logo and the spin then please reset