My Macbook Pro Showing White Screen At startup

Macbook pro showing white screen after loading window
i think its not booting to hdd
What shoud i do??
Message was edited by: Krishnaraj7777

Krishnaraj7777,
you can try this: boot your MacBook Pro into Recovery mode by holding down a Command key and the R key as it starts up. Once the  OS X Utilities menu appears, select Disk Utility. On the left-hand side of the Disk Utility window, select your internal disk’s boot partition (typically called “Macintosh HD”). On the right-hand side, press the Verify Disk button if it’s not greyed out; if it is greyed out, or if it reports that errors were found, press the Repair Disk button. Once the verification/repair is completed, exit Disk Utility and select Restart from the Apple menu to restart in normal mode. Do you get past the white screen now?

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