Dual Boot disappear

[omega1988]

Dual Boot disappear after i reinstalled windows . how can i return dual boot screen ?

if it somehow helps i used yosemite 10.10.5 and windows 8.1 . bootloader chameleon

 

[nobodynose]

Dual Boot disappear after i reinstalled windows . how can i return dual boot screen ?

if it somehow helps i used yosemite 10.10.5 and windows 8.1 . bootloader chameleon

It sounds like the Windows bootloader overwrote Chameleon when you reinstalled Windows. Are your Mac OS X and Windows on separate hard drives or on a single partitioned drive?

 

[omega1988]

they are on 1 hdd , 2 partitions

 

[omega1988]

how can i return it ? i can't boot to OSX

 

[nobodynose]

how can i return it ? i can't boot to OSX

You're going to have to boot from an OS X USB installer (I hope you have one) and reinstall Chameleon or Chimera.

 

[omega1988]

i dont =(

 

[nobodynose]

i dont =(

Can you get access to a friend or family member's Mac in order to create a UniBeast USB installer?

 

[omega1988]

yes but where can i download yesmite ? or it dos not matter if i make a bootable usb with el capitan ?

 

[nobodynose]

yes but where can i download yesmite ? or it dos not matter if i make a bootable usb with el capitan ?

For your purposes (to reinstall the bootloader) it doesn't matter which version of OS X you boot from. You just need to boot from the USB and run the Chimera installer (from the USB).

 

[omega1988]

if i make an image with R-drive and restore it to another hdd , and put him primary . will it load ?