i sucessfully installed 10.9 on my i7-2600k, ASUS P8P67 Evo and AMD Radeon HD 7850. I used Chameleon Wizard to install the bootloader. But after the update i accidentaly also installed the "Andys Boot Package" which installed a bootloader (dont remember which one). But now i couldnt boot anymore. Every boot iso i used didnt worked and some of them gave me a graphical error screen. Some of them just restart. I dont know what is the problem.
Anyways: I want to rescue my data from the HD, but in Windows i cannot access it with programs for HFS. What can i do to rescue them?