windows bootmanager stole my UEFI boot option

[Macbooky]

Hi,

I completely messed up my OSX Yosemite install by trying out win10 preview. That created a windows bootmanager instead of a UEFI partition. The clover EFI is still in there but there is no UEFI option in my boot options .... i hope someone can help me kill Win10 bootmanager and revive my UEFi because starting of a thumb drive is becoming annoying.




thanks in advance!

 

[Going Bald]

Hi,

I completely messed up my OSX Yosemite install by trying out win10 preview. That created a windows bootmanager instead of a UEFI partition. The clover EFI is still in there but there is no UEFI option in my boot options .... i hope someone can help me kill Win10 bootmanager and revive my UEFi because starting of a thumb drive is becoming annoying.




thanks in advance!

Use Ubuntu Live DVD and EFIbootmgr