Can't boot into Windows after Yosemite reinstall

Discussion in 'Windows, Linux & Others on the Mac' started by ralph123, Nov 7, 2014.

  1. ralph123 macrumors newbie

    Joined:
    May 3, 2014
    #1
    Hi to all, when Yosemite went live to all users, I updated but a week later I wasn't happy with the performance of the mac and certain apps. So I installed the OS from scratch, I made a backup, erased the Macintosh HD and reinstalled, all went right. But I also have another partition with Windows 8.1 installed on the Mac, and the first time that I tried to boot up from there I couldn't see the partition holding the option key on the startup so I made the startup disk from the option at Settings, but when I restarted onto Windows it said "no bootable device insert boot disk and press any key", I've tried to repair the disk from disk utility, but all the options are greyed out and I can only change the name of the disk, I run a program called rEfi or something like that and the result was this * Report for internal hard disk *

    Current GPT partition table: # Start LBA End LBA Type 1 40 409639 EFI System (FAT) 2 409640 1195166855 Mac OS X HFS+ 3 1196436392 1704248887 Mac OS X HFS+ 4 1708654592 1953521663 Basic Data

    Current MBR partition table: # A Start LBA End LBA Type 1 1 409639 ee EFI Protective 2 409640 1195166855 af Mac OS X HFS+ 3 1196436392 1704248887 af Mac OS X HFS+ 4 1708654592 1953521663 0c FAT32 (LBA)

    MBR contents: Boot Code: Unknown, but bootable

    Partition at LBA 40: Boot Code: None (Non-system disk message) File System: FAT32 Listed in GPT as partition 1, type EFI System (FAT)

    Partition at LBA 409640: Boot Code: None File System: HFS Extended (HFS+) Listed in GPT as partition 2, type Mac OS X HFS+ Listed in MBR as partition 2, type af Mac OS X HFS+

    Partition at LBA 1196436392: Boot Code: None File System: HFS Extended (HFS+) Listed in GPT as partition 3, type Mac OS X HFS+ Listed in MBR as partition 3, type af Mac OS X HFS+

    Partition at LBA 1708654592: Boot Code: Windows BOOTMGR (Vista) File System: NTFS Listed in GPT as partition 4, type Basic Data Listed in MBR as partition 4, type 0c FAT32 (LBA)

    If anyone could help me, I'd appreciate it :) Sorry for my English and thanks.
     
  2. J232022, Nov 7, 2014
    Last edited: Nov 7, 2014

    J232022 macrumors member

    Joined:
    Nov 3, 2014
    #2
    This is why it is smart to back up before a upgrade or install , you should have used carbon copy cloner or the free super duper backup programs . Whenever you do a upgrade or install there is always the chance of something going wrong . In my opinion you should wait a month or two after a mac version is released so that there will be less issues and problems get fixed . Are you able to go back to mavericks or another previous mac version ? I have heard yosemite has problems with bootcamp .
     

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