Bootcamp won't work, Keep trying everything!!!

[Kevsta26]

So I've been trying to install Windows 7 Ultimate on my MacBook Pro 15" Early 2011 running OS X Lion 10.7.3 and there's been no luck! Every time I go to bootcamp assistant and I try to make the partition for windows it works for a minute and then pops up saying

The disk cannot be partitioned because some files cannot be moved.

Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again.

I've tried a lot of things like repairing the disk, using iDefrag, making my own FAT partition which also fails, and doing a full restore from snow leopard back to lion using the sl disk. I did loose some harddrive space at one point and happened to delete my Recovery HD to see if that would fix the problem, which it didn't, so I just recently reinstalled OS X Lion from the App store and now I have all my harddrive space back and the Recovery HD... I'm just really stuck and have been trying and trying for days to fix this, but there's no luck 🙁 Please help, Thanks!

 

[r.j.s]

You tried a lot, but you didn't do what it said - which is the only way to truly avoid that error.

 

[Kevsta26]

Well I don't have anything to back up the drive, and I've reinstalled the entire computer with the Snow Leopard Disk without backing up at all and loosing everything, but I still have this error? Maybe I should try it again?

 

[simsaladimbamba]

What about a simple Clean Install deleting the entire HDD*?:

To create a Clean Install (formerly known as Erase & Install) of Mac OS X 10.6 Snow Leopard (the 29 USD Upgrade DVD is a fully working retail version of Mac OS X and does not need a prior installation of Mac OS X on the Mac), follow one of the following guides:

• Short version: Clean Install of OS X 10.6 Snow Leopard
• Long version: Mac OS X v10.6 Snow Leopard: How to Erase and Install

*

How to format a new HDD to install Mac OS X onto (or make a bootable copy onto)​

 

[Kevsta26]

Would this work with the Lion Recovery HD? or do I have to do this with the Snow Leopard disk and then Update to Lion later?

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I guess I could do a lion clean install http://mashable.com/2011/07/20/lion-clean-install-guide/

 

[NoamGM]

I had the same error and this solution worked out for me:
https://forums.macrumors.com/posts/14170444/