After Installing Lion how do i get the windows partition back?

Boot camp partition of Windows 7 for me. I had a Macbook Pro with a split HD partion 50/50 that was created using Boot Camp assistant on OS X Snow Leopard. After upgrading to Lion I had one 300gb Mac partition it had completely removed my 149.5 gb NTFS Windows 7 partition.

Unless the virtual machine's system disk is mapped to the BootCamp partition. If the VM was created independent of the BootCamp partition then there shouldn't be a problem.

Yes Snow leopard 64-bit leopard 32-bit with some 64-bit capability.

Was your bootcamp partition also linked to fusion or parallels? Did you back up your Win 7 so that you could reinstall it if necessary?

In my case it is pure virtual so I should be alright. One of my students has installed Lion and he has Windows as a virtual and was fine. I do back up all my data. The Windows software is download only but I have all the product keys and licenses stored, backed up etc....

I lost my Windows 7 Boot Camp partition too. I can boot into safe mode, but as soon as I boot normally, I receive a BSoD about cache errors. Thanks Apple for letting us know Lion would kill Windows. Good thing I back up my data.

I also lost my Windows 7 boot Camp partition on the laptop. It was in Partition 4 and seems to have been bumped off by Lion's recovery partition. No recent backup on this, and that's a huge problem - any ideas on how to recover? The data is likely still there, but it would appear that all the disk utility tools and similar are showing the old windows partition as free space now... not a good sign.

iMac upgrade went fine, but that only had three primary partitions, anyone else who lost their partition have it in Primary Partition 4 before the upgrade?

How could Apple possibly let through their QC checks that their recovery partition would just bump off a partition if there wasn't room!?

Just figured out a fix that worked for me!

To summarize, after Lion install I have no visibility of the Windows partition in Boot Camp, with the option key at start, or in Disk Utility (or other FDISK type tools)...

I put in my Windows 7 intallation disk, booted past the first screen into the recovery tools, and tried the automatic recovery option, and wonders of wonders, it worked. It's now showing up just fine and I can boot into it, so it looks like all Lion did was kill off access to it in the partition table without messing up the data, in a way that Windows could correct.

Amen. I wish there was some Microsoft raw warning reminding or encouraging you to backup all data and partitions first.

I installed Lion, hated it, and reinstalled SL. I then set up Boot Camp and reimaged it with my backed up copy of Windows 7 from the previous Boot Camp partition. Here's what I am wanting to do and perhaps it will help some of you. I haven't tried it yet, but plan to tomorrow and this weekend:

NOW

partition 1: MAC OS X Snow Leopard

partition 2: Windows 7

LATER

partition 1: Snow Leopard

partition 2: Lion

partition 3: Windows 7

either using disk utility or rEFIt, create a third partition by splitting partition 1. I want to install Snow Leopard on one partition and Lion on another, keeping Windows on the Boot Camp partition that is already there. Now, since I think what will happen is by creating a third partition, it will render Boot Camp invisible by messing with the partition tables/MBR/whatever. I am thinking that rEFIt will be able to accomplish this. I've installed rEFIt and I can boot to my choice of OS just like holding down option key, but it also allows me to further partition the drive without using the OS X disk utility. Since rEFIt is doing the mapping, I feel certain all partitions will show up after creating the third partition.

I'm doing this to give Lion a chance, but I want a clean install, not over Snow Leopard. And, of course, I use the Windows partition for work, so I need that in tact. Any feedback on attemptin this would be appreciated.

By the way, I used to boot directly into Windows (Boot Camp), but I found that Parallels can import it. My experience is using Parallels with the BC partition, the performance is stellar. VMWare, don't care for it. Parallels though, I'm hesitant to create a strictly virtual environment outside of BC. I'm guessing the performance won't be as good.

I successfully have Snow Leopard, Lion and Windows all running on my MacBook Pro. I had a bad experience upgrading with Lion, however, the clean install is not sluggish at all. I am trying to get used to some things, but it is better.

If Lion overwrites the first 600MB of the Windows partition, why some people didn't seem to be affacted by that? Do you guys think if available free disk space during upgrade played a role?

Also, has anyone who lost the Windows partition spoke with the Genius Bar people about it?

I think the installation, by design, is supposed to take the 600 MB from the SL partition and not the BootCamp. There are some cases were the disk layout is not as expected and the installer ends up damaging the BootCamp partition, even if it detects that it does not recognize the disk layout and does not create the Recovery HD.