Q: Bootcamp fails after El capitan upgrade (Plz help me Loner!)

Hi,

I think I've the same issue postedBootcamp fails after Yosemite upgrade (Plz help me Loner!)

But as the other user I'm a little bit scared, and I don't want to loose my Bootcamp partition.

That's why I'm asking some help to Loner (many thanks in advance).

I upgraded my MacBook Pro 13" (mid 2010) to El Capitan 10.11.5.

Then I noticed that I couldn't find Bootcamp.

As for the other issue, the partition was still there but now under the name "disk0s4".

I used Testdisk, following the advices and I found out the missing partion and also the data (I was able to make a copy)

Now I'd like to be sure to do the right steps to recover the situation.

Here is the output of Testdisk

The highligthed partion is the right one, here's where I found my data.

Now, what I'm supposing to do is to follow the same steps I read in the old post using 508484288 in step 7 and +468284272 in step 8, this way:

Rebuild GPT4 using start/end offsets

1. Sudo gdisk /dev/rdisk0
2. P  (print the full list of parts)
3. D  (delete)
4. 4  (part 4)
5. N  (new part)
6. 4  (part 4)
7. 508484288 ( - Start offset in sectors or the start point for Bootcamp part)
8. +468284272 ( - Size offset, as opposed to End offset)
9. 0700 (Windows part type)
10. P  (print list of all parts just to see what changes will be made)
11. W (Write the new GPT)
12. Y  (Yes! really write the new GPT)

And then I need to rebuild the MBR (as the old post)

1. Sudo gdisk /dev/rdisk0
2. P  (Print list of parts)
3. R  (Recover)
4. O (print current Hybrid MBR)
5. H (chooses Hybrid)
6. Partitions numbers to be hybridized: 2 3 4
7. Y  (Good for GRUB question)
8. N  (part 2 boot flag)
9. N  (part 3 boot flag)
10. Y  (part 4 boot flag make NTFS bootable partition)
11. O  (print current Hybrid MBR)
12. W (Write the new MBR)
13. Y (Yes! write the new MBR)
14. Reboot

I'm pretty sure I'm in the right direction, but...

Thanks a lot for any help