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These are instructions on how to remove a Windows Boot Camp partition and expand your Mac OS X partition to regain the newly available hard drive space.
Step One
Launch Boot Camp Assistant from the Applications:Utilities folder.
Step Two
Click the Continue button.
Step Three
Check only the Install or remove Windows 7 option and click Continue.
Step Four
Choose Restore disk to a single Mac OS partition and click Continue.
Step Five
Click the Restore button to begin.
Step Six
You will be asked to login with your Administrative username and password. Enter these and click the OK button.
Step Seven
You disk will now be repartitioned to remove the Windows volume.
Step Eight
You will be informed that your disk has been restored as a single volume. Click the Quit button.
