After updating to Maverick, Windows 7 bootcamp partition can't mount

Well these two are the only ones showing any sign of files, but only the first one seems big enough yes? I'm running a "deeper search" now just to see if anything else with files comes up. Looks like it may take a few hours. Should I try any other options like looking for a partition type other than "Intel/PC"? I'll download gdisk now and start checking it out. Any suggestions on where to start in the documentation (i.e., for deleting the existing 4th partition and the recreating it with the new start and end values)?

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I'm following it so far (and learning a lot), thanks Loner T. I'm a tad stuck here on the following quote. If nothing were wrong with my partitions what values would I expect for these settings? e.g., GPT State, MBR State, Hybrid MBR?

...GPT can report three states (present, not present, or damaged), and there are four MBR states (MBR only, protective, hybrid, or not present). The normal state for an MBR-only disk is as shown above, and the normal state for a GPT disk is MBR: protective and GPT: present. Hybrid MBRs (described on my Hybrid MBRs page) change the MBR state to hybrid. Other combinations are possible, some of which indicate that a disk has been re-partitioned for a new partitioning system without completely erasing the old partition table..

Thanks Chris. I'm reading what I can about gdisk and this seems to be the part where I could really mess it up if I don't do it exactly right. Am I allowed to bribe you to log on to my machine and try this part for me?

OK, I've taken my <ahem> out of my purse. Let's see what we can do.. Here is the initial (p)rint command from gdisk..

So we're gonna delete number 4 and then recreate it using this info from test disk:

Just want to confirm the next step: Delete partition number 4 using gdisk? I can see this is done using the "d" command but I'm not seeing the syntax for indicating which partition gets deleted. e.g., "d /4" kind of thing?

Oh, FYI, at the start of all this we changed the partition info to indicate *4: 07 instead of 4: 0C. I should mention that after I did that, the Windows option DOES now appear at boot up. But when Windows tries to load, it gives a black screen with "Missing Operating System". Does that offer further hope that the MBR is ok and that it's simply the Windows7 partition that is incorrectly addressed? Maybe not critical, just curious.

Great to know about "write" being required. Here is the info on #4. So I'll use "d" then "4" to delete. Then "n" to add it back with the correct starting and ending parameters. Will ordinal position simply be "4"? Will it then prompt me to enter the starting and ending locations?

Is there a reason why it would prompt me again to enter the same starting location?

Not sure what that means. I thought the old value (the wrong value) was 487000064. So what does this mean? I guess I can see that the "default" it gives is one sector after the last sector of the third partition. That makes sense. But will it be correct? Hmm.