Refind triple boot issue Macbook Pro

[Gjeme Markaj]

Hi, anyone who can assist with this issue?

I had a dual boot setup using OSX/Win7, all was working fine. I installed refind, added another partition and installed Linux on the new partition. When the machine boots, refind launches, shows me all 3 OSs. I can boot OSX & Linux, but now, it cannot find Win7. I get "operating system not found" only for Win7. When I'm using OSX, I can see the Windows files on the BOOTCAMP partition so its still there, it just seems that refit can't find the WIN7 MBR.
Any help is greatly appreciated!

[Roderick W. Smith]

Chances are your Ubuntu installation has replaced your hybrid MBR with a
standard protective MBR. Consult the gdisk hybrid MBR information here:

http://www.rodsbooks.com/gdisk/hybrid.html

You can probably restore Windows to bootability by creating a fresh
hybrid MBR using gdisk. The Windows boot partition must be included in
the hybrid MBR. It's conceivable you'll need to use Windows tools to
re-install the Windows boot loader from an emergency disk after you
create a fresh hybrid MBR, as well.

[Chuck Theobald]

I had a similar situation. Dual boot with Windows 8.1 and Yosemite worked fine, then I divided the Windows partition and installed Ubuntu. At this point, only OS X was bootable. No Windows tools could fix the problem, but reinstalling rEFInd got all three partitions bootable again.