That message means that you have more than one partition in the hard drive, and Boot Camp requires that you only have got one.
First of all, if you have got data in that second partition, open Finder, select it in the sidebar and copy all the data you need from that partition to another folder (for example, the desktop).
Then, you just have to remove the partition and resize the OS X partition using Disk Utility > http://pondini.org/OSX/DU4.html
Finally, open Boot Camp Assistant (in /Applications/Utilities) and install Windows > http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf
Sorry, but Recovery HD is a hidden partition and you shouldn't see it in Disk Utility. Did you do something to show it in Disk Utility? If so, hide the hidden partitions in Disk Utility.
To do it, first open Disk Utility and see if Debug menu appears on the menu bar. If not, open Terminal and type:
defaults write com.apple.DiskUtility DUDebugMenuEnabled 1
Then, close Terminal, open Disk Utility, go to Debug menu (on the menu bar) and untick "Show every partition". After doing that, you shouldn't see the Recovery HD anymore, so open Boot Camp Assistant and try to install Windows.
If you still can't install OS X, you did something to Recovery HD to make it show
I get this
Verifying volume “Macintosh HD”
Checking file systemPerforming live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Make a clone of your Macintosh HD content onto an external drive using the Disk Utility's Restore feature > http://pondini.org/OSX/DU7.html
Then, you have to format the hard drive. To do it, follow these steps:
1. Hold Command, Option (Alt) and R keys while your Mac is starting, and open Disk Utility.
2. Choose the hard drive at the top of the sidebar, go to Erase tab and erase the drive.
3. Select the external drive in the sidebar, go to Restore tab and drag Macintosh HD from the sidebar to Destination box. Press Restore.
4. Close Disk Utility and restart the Mac
Wait so i make a clone of my macintosh HD onton my external hardrive meaning my hard drive
Then I restart my mac using command option and R and open disk utility
then chose my main hard drive of my computer and erase the drive
then select my hard drive and restroe my main hard drive on my mac
and restart my mac?
If you want to use another app, use Carbon Copy Cloner. SuperDuper doesn't clone Recovery HD. You can also use Time Machine, so after erasing the drive, you just have to close Disk Utiliity, select the option to restore the backup and follow its steps > http://support.apple.com/kb/HT1427
Thanks just downloaded Carbon Copy Cloner halfway done with backing it up. But I don't really knwo what to do after wards.
So after I'm done cloning, I go into recovery hd and delete everything on my main hard drive then I reformat it to what format?
Then how do I put my cloned hard drive in? I don't really get it. Could you explain again in detail? Thnx for your help
I explain the steps again:
1. Make a backup.
2. Hold Command, Option (Alt) and R keys while your Mac is starting, and open Disk Utility.
3. Choose the hard drive at the top of the sidebar, go to Erase tab and erase the drive. The Format already comes as "Mac OS Extended (Journaled)", so there's no need to modify it.
4. Choose Macintosh HD (or the name you chose for the partition) in the sidebar, go to Restore tab and you will see the external drive with the clone in the sidebar. Drag it to the Destination box, and press Restore