Boot Camp partition corrupted after OS X Yosemite Recovery Update

As the written in the title, after installing the Recovery update i can no longer boot to Windows, the drive doesn't appear on either StartUp disk or on boot when holding the option key. Is there anyway to recover it? don't have a backup of it so my options are either fix it if possible or start from scratch.
Macbook Pro 15-inch mid 2012
Processor: 2,3 GHz Intel Core i7
Memory: 8GB 1600 Mhz DDR3
Graphic: NVIDIA GeForce GT 650M 512MB
OS X 10.10.3

I followed the Steps in this thread(Bootcamp partition missing after yosemite installation). I dont see my Windows parition at startup-disk.
When i hold alt at the boot process, i can select and boot windows but then a weird error windows opens, it tries to repair the problem automatically, fails and wants to restart the computer...
What can i do?
And my output is:
Frederiks-MacBook-Pro:~ frederik$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         299.4 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.1 MB   disk0s3
   4:       Microsoft Basic Data BOOTCAMP                200.0 GB   disk0s4
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Ohne Titel             *299.1 GB   disk1
                                 Logical Volume on disk0s2
                                 5F59958C-E8AF-4C32-A646-D58D15CE379E
                                 Unlocked Encrypted
Frederiks-MacBook-Pro:~ frederik$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 4D75F3DC-C99C-47A3-9B55-3262BE4D4180
    =========================================================
    Name:         Ohne Titel
    Status:       Online
    Size:         299417849856 B (299.4 GB)
    Free Space:   118784 B (118.8 KB)
    |
    +-< Physical Volume B71D0BA3-8C42-4783-8595-6321D8F9B17F
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     299417849856 B (299.4 GB)
    |
    +-> Logical Volume Family 7F506808-72AD-4CE5-A316-897C84DDC722
        Encryption Status:       Unlocked
        Encryption Type:         AES-XTS
        Conversion Status:       Complete
        Conversion Direction:    -none-
        Has Encrypted Extents:   Yes
        Fully Secure:            Yes
        Passphrase Required:     Yes
        |
        +-> Logical Volume 5F59958C-E8AF-4C32-A646-D58D15CE379E
            Disk:                  disk1
            Status:                Online
            Size (Total):          299065409536 B (299.1 GB)
            Conversion Progress:   -none-
            Revertible:            Yes (unlock and decryption required)
            LV Name:               Ohne Titel
            Volume Name:           Ohne Titel
            Content Hint:          Apple_HFS
Frederiks-MacBook-Pro:~ frederik$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 977105059
      start       size index contents
          0          1         MBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640 584800488      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
585210128    1269760      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
586479888       1776
586481664 390621184      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
977102848       2179
977105027         32         Sec GPT table
977105059          1         Sec GPT header
Frederiks-MacBook-Pro:~ frederik$ sudo fdisk /dev/disk0
Disk: /dev/disk0    geometry: 60821/255/63 [977105060 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE    0   0   2 -   25 127 14 [         1 -     409639] <Unknown ID>
2: AF   25 127 15 - 1023 254 63 [    409640 - 584800488] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 585210128 -    1269760] Darwin Boot
*4: 07 1023 254 63 - 1023 254 63 [ 586481664 - 390621184] HPFS/QNX/AUX
Thank you

Similar Messages

Boot Camp Partition Missing after shrinking Mac Partition

Hello Chris I have a OSX 10.9.2 running all upgrades, Powerbook 2.3g i7 16 GB , Had a boot camp partition of 49 GB, running windows 7 all working fine.
Decided to bump the windows 7 to 100 GB. Used disk utility to decrease the mac partition to 401.6
Image of the way it is now.
The Gray part is what is from the apply done the original time.
After I hit apply. I then restarted and tried to enter boot camp by holding down the altOption key as usual but only the OSX and the Recover partition where there No Windows.
NOTE: did the Windows 7 partition increase from 29 to the 49 GB before this same way and everything worked fine for over a month till i decided to double the partition to 100GB.
In the preferences the Mac Hd only shows up, no network or windows.
Network does show up when holding down altOption Key
Saw that you might be the best help I would like to talk to you and get your Genus going
After I hit apply. I then restarted and tried to enter boot camp by holding down the altOption key as usual but only the OSX and the Recover partition where there No Windows.
NOTE: did the Windows 7 partition increase from 29 to the 49 GB before this same way and everything worked fine for over a month till i decided to double the partition to 100GB. 2. In the preferences the Mac Hd only shows up, no network or windows. 3. Network does show up when holding down altOption Key
Saw that you might be the best help I would like to talk to you and get your Genus going
I ran the Items below as you have asked in the past.
Last login: Fri Jun 27 15:02:59 on ttys000
Kens-MacBook-Pro:~ Ken$ sudo gpt -r -v show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060
gpt show: /dev/disk0: Suspicious MBR at sector 0
      start       size index contents
          0          1         MBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640 784379648      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
784789288    1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
786058824   95345080
881403904   95700992      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
977104896        131
977105027         32         Sec GPT table
977105059          1         Sec GPT header
Kens-MacBook-Pro:~ Ken$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 60821/255/63 [977105060 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [    409640 - 784379648] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 784789288 -    1269536] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [ 881403904 -   95700992] Win95 FAT32L
Kens-MacBook-Pro:~ Ken$
What to do Next ?

Chris I just did what Loner T said
sudo fdisk -e /dev/disk0
setpid 4
07
flag 4
write
I then restart and now I can see the windows partition after on restart and altOption down.
But it then gives a error can't find drive or something like that.

IMail problem after latest OS Yosemite Recovery update (@09.04.2015), OS X update, itunes update

Hi,
I have a problem. After the latest update of OS X Yosemite, Yosemite Recovery update and iTunes I have a big problem. I mail is not lunching, it says that it is identifying message conversations and it will take few minutes... But it has been all day. The situation does not change even after restarting the system. Forcing to quit and reopening the iMail does not help also.
What is the solution?
Have anyone had something similar?
Any ideas?!
Thank you in advance, looking forward for some advice.

Try a restart.
Do a backup, using either Time Machine or a cloning program, to ensure files/data can be recovered. Two backups are better than one.
Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.
Isolating an issue by using another user account
Try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear and again when you log in. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don’t do them all at once.
Safe Mode - Mavericks also Yosemite
Safe Mode - About

Boot Camp partition disappeared after installing Lion

Hi,
I have a MacBook Pro in which I had installed Windows 7 with two partitions: the mainWindows system and the programs ... and other with data, which is larger.
Last week I upgraded to Lion and I can boot into Windows 7 perfectly ... but nevertheless,the data partition is gone and can not find the way to get it back. Has it happened to anyone? Does anyone know how to fix it? At least 400GB of info gone out... :'(
Thank you for your attention.

Well... here is the solution I´ve found:
- Unplug HDD from MacBook Pro.
- Connect it to any PC (vía USB, SATA, whatever interface you can...)
- Use any application to recover lost or erased partitions. I´ve used Active @ Partition Recovery, with a nice price / quality relation (Windows platafform).
- Program should find lost partition without problem. Save changes. Done.
- My Lion, Windows 7 are now running OK like the first day without any problem.
Before trying this obvius way, I´ve tested another software I own to test data recovery, like Ontrack Easy Recovery Professional, and it works fine... but with this type of software, you will need an extra HDD or partition where you will save all recovered data.
Hope this help, best regards.

Boot Camp partition not listed in Windows Setup

I am trying to install Windows 7 with DVD and I used the Boot Camp assistant 5 run in OS X Mavericks (10.9.1). Everything was copied with latest drivers, created Boot Camp partition. After that Mac restarted and booted into the windows installation. I run install process and it says something like: "Any media were not found." No drive found here. So in this stage my install journey ends. If I going back to OS X and check Disk Utility, the Boot Camp partition is there. So I don't understand why the installation can't find any partitions even drives.
any solution for case this ?

you need to install windows support software on a usb 2 flashdrive. more simply, start over in bootcamp, insert your usb drive as well as the dvd, check all 3 options. bootcamp will do the rest.
or it could be a problem with the install disc, why not download win 7 iso from here;
http://techverse.net/download-windows-7-iso-x86-x64-microsofts-official-servers/
and go with this, its perfectly legal to use your activation code during instalation.

Boot camp partition disappeared

Hello out there,
until the last hour I had a working system with a Mac OS X and Boot Camp partition.
After a reinstall of "Missing Sync for Windows Mobile" the Boot Camp partition icon has disappeared and is no longer shown in the start volume preference pane.
But it is still there, because I can select it during boot up, pressing the option key. And it is working fine...
Can someone tell me how to get my Boot Camp partition back into Mac OS X?
Regards
Ansgar
PS: May be the wrong discussion, but does somebody know if there are incopatibilities between MacOS X 10.5.7 and Missing Sync for "Windows Mobile"?

Thanks for the reference. You saved my sanity, or what's left of it. In my desperation, I even started getting to know my partition tables on a first-name basis - a sure sign of madness.
My variation on the problem was that after a disk crash, I restored my system from Time Machine. I didn't quite realize that TM does not restore system extensions, like MacFUSE; it does, however, restore the MacFUSE plug-ins, like NTFS-3G. So NTFS-3G was claiming to handle the Windows partition, but actually wasn't. Based on your post, I tried disabling NTFS-3G from the System Preferences; that's when it told me that MacFUSE was not installed. Duh.
Greetings from Switzerland.
-- Philip
P.S. I use Missing Sync for Windows Mobile, too, and it works fine on 10.5.7 - or as well as it ever did on previous versions.

Boot camp partition on my internal Drive

I Have a imac early 2008 and i partitioned part of my internal Hard drive as a partition for time machine. but now i can not get rid of that time machine partition. I have already erased the partition but it will not let me delete the boot camp partition. even after reformating the hard drive. i can eject it but every time i restart it shows back up under my HD icon.
So my question is how do i get rid of that partition and return my HD back to normal.

Use /Applications/Utilities/Boot Camp Assistant to remove the boot camp partition.
Good luck!
P.S. Welcome to Discussions!
Message was edited by: joshz

All files on Boot Camp partition mysteriously erased after 10.5.3 update

My wife's MBP 2.4 was running 10.5.2 with a Boot Camp installation of Windows XP. The other night she upgraded to 10.5.3 and everything on her Boot Camp partition was erased somehow.
She spent most of the day working in Windows. During the day someone gave her a usb key with some photos on it that when she plugged it in to her computer something came up in Turkish (she is presently in Turkey) that her friend said she should just close the window and she did. She shut down and switched over to the 10.5.2 install, repaired permissions, and then ran software update to go to 10.5.3. I believe her Boot Camp is updated to the most recent version on the PC side. After the update completed she went to go back into Windows and could not start up in it. It turned out somehow everything on the Boot Camp partition was gone. The partition name was the same as it had been previously and it shouls as all of the space available. None of the material was in the Trash on the Mac side and she had quite a build up in the Trash folder - so it wasn't put in the Trash and then the Trash emptied. It was as if someone had reformatted the partition.
I would chalk this up to user error when she was in disk utility maybe or someone in her studio screwing around with her computer but the same thing apparently happened to one of her classmates shortly before leaving for Turkey. Anyone heard of this happening or have any thoughts?
I had her saving all data to the Mac partition so luckily no data was lost - we just need to reinstall the programs to the Windows partition.
Thanks!

Nope, that didn't happen. The mbp has been loaded directly with Leopard since release day, and had few problems. I've done all the updates from 10.5.0 without any issues. But it was definitely something in the 10.5.3 update that hosed my video (or just a really, really strange coincidence and/or bad timing).
It's not just an OS driver, either. This is lower level than that, because I get NO video from a complete startup. There's no grey screen with the apple logo-- it stays completely blank. This almost surely means that the low-level firmware got corrupted or flashed incorrectly. The fact that the OS detects it as something completely different (Intel GMA X3100) supports this idea.
Thinking back, I did do the update with my laptop screen closed and using a 20" Apple Cinema Display, which is how I use the laptop 90% of the time. And in each of the previous updates, I'm certain they were installed similarly. I mention this, because someone else mentioned having the same issue as me, and noted that the update was done with an external display. Perhaps the firmware update is bugged so that if it doesn't detect the native display, it gets hosed...
I saw some other suggestions in another thread that sounded interesting. For instance, you can create a self booting CD on another Mac that reflashes the EFI (low level bios) to a factory setting. This could potentially fix it, and I would be willing to try it, if I still had my laptop.
In the future, just because things like this make me paranoid, I'll probably reboot the mbp and use only the native display before I do any updates...
Rich

Boot Camp partition not bootable after update

Hi All, hi Loner T!
After an OSX update I lost my Boot Camp partition. Reading you replies here on the forum, i was able to save my important files through testdisk, for what i'm really thankful! Following your instructions in this thread (Bootcamp disk0s4 gone after Yosemite update) the bootcamp partition finally appeared in finder and disk utility.
But sudo gdisk /dev/disk0 returns with this:
Kovacs-Peter-Attilas-MacBook-Pro:~ kovacspeterattila$ Sudo gdisk /dev/disk0
Password:
GPT fdisk (gdisk) version 1.0.0
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Command (? for help):
So if it is able i would avoid reinstalling windows, and all the applications with your help. I saw many people asking you about this case, so i hope you may can help me as well.
Thank you!

Hi LonerT, I too have lost the ability to boot into windows/bootcamp - only Mac & recovery are displayed at startup.
Below are my results for the same set of instructions.
What does it indicate?
Thank you!
Hils-MacBook-Pro-2:~ king_hil$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            175.0 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         50.0 GB    disk0s4
Hils-MacBook-Pro-2:~ king_hil$ diskutil cs list
No CoreStorage logical volume groups found
Hils-MacBook-Pro-2:~ king_hil$ sudo gpt -vv -r show /dev/disk0
gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 490234751
      start       size index contents
          0          1         MBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640 341796872      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
342206512    1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
343476048   49103024
392579072   97654784      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
490233856        863
490234719         32         Sec GPT table
490234751          1         Sec GPT header
Hils-MacBook-Pro-2:~ king_hil$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [    409640 - 341796872] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 342206512 -    1269536] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [ 392579072 -   97654784] Win95 FAT32L
I added:
Hils-MacBook-Pro-2:~ king_hil$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [    409640 - 341796872] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 342206512 -    1269536] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [ 392579072 -   97654784] Win95 FAT32L
Hils-MacBook-Pro-2:~ king_hil$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C
00000000 be b7 90 5b dc 2d 75 3f bc f2 56 7b d7 ee 87 19 |...[.-u?..V{....|
00000010 b9 cd de 96 1f af c7 a9 ef 83 eb 21 fa 90 7e a2 |...........!..~.|
00000020 31 1a 9c e9 c3 ea c9 78 78 3f 02 1f 31 0f 54 90 |1......xx?..1.T.|
00000030 26 4d d9 a3 e1 a9 7f f4 f7 0f 65 e6 1e 6b fb c1 |&M........e..k..|
00000040 a6 13 bf 5e 52 89 ef 07 a5 d8 4b 32 86 93 94 09 |...^R.....K2....|
00000050 db 49 d6 84 6f 7f 51 54 fc a4 70 22 7b a2 78 a2 |.I..o.QT..p"{.x.|
00000060 76 52 b3 1f 62 68 62 72 d2 b6 17 7e be 8b d7 ff |vR..bhbr...~....|
00000070 c5 df 3b 5a f8 4b 71 2f 38 c3 4e 36 6f e6 cb f7 |..;Z.Kq/8.N6o...|
00000080 15 f2 8a 7f a5 bd e5 bd a3 aa 79 b5 bc 3a 5e 03 |..........y..:^.|
00000090 af f1 d7 c2 db 3e 1d 4e df a9 ef 14 d7 94 e0 74 |.....>.N.......t|
000000a0 3d 85 62 4a 71 4a 7b ca 70 ca 6c 9a be 17 2c bb |=.bJqJ{.p.l...,.|
000000b0 3f 29 17 31 95 30 2d ec 1d a9 92 a9 da 69 cd 54 |?).1.0-......i.T|
000000c0 c7 b4 69 6a 6c 6a 7e 6a b5 77 24 57 a7 ff 8c c0 |..ijlj~j.w$W....|
000000d0 2c 78 16 31 a3 32 a3 33 83 72 c6 62 2f 28 8f 59 |,x.1.2.3.r.b/(.Y|
000000e0 de 4c c4 ac 60 26 7d 26 0f d2 a2 69 9b 35 ce 8c |.L..`&}&...i.5..|
000000f0 cd 2c 60 24 64 31 c7 d1 49 64 1e 3a 27 3b a7 3c |.,`$d1..Id.:';.<|
00000100 a7 35 67 38 4f e9 e4 3e e7 3f 17 bd 0f 2e 7d ae |.5g8O..>.?....}.|
00000110 60 ae 7c ae b1 57 64 fa e7 c6 e6 e6 1d 2d bc 3a |`.|..Wd......-.:|
00000120 57 0b dc 0b 62 db 21 51 0b ea 0b 7a f6 39 2f f8 |W...b.!Q...z.9/.|
00000130 ee 83 89 5d 14 2e 64 2e 14 2f d4 2d 6a 17 ba 17 |...]..d../.-j...|
00000140 cd 0b d3 0b cb 0b db cb f1 d2 69 40 5f d0 18 89 |..........i@_...|
00000150 25 b9 65 cc 92 c1 92 f9 92 e3 92 d7 52 d0 52 cc |%.e.........R.R.|
00000160 56 bc 6c 29 bf 53 f3 52 d7 d2 48 a7 c5 a5 9d d5 |V.l).S.R..H.....|
00000170 bb c2 be 22 b0 22 b5 8a 5a c5 ac 62 57 50 ae 52 |..."."..Z..bWP.R|
00000180 57 ec 57 dc 56 b9 2b 91 2b 29 ab b2 95 c2 95 aa |W.W.V.+.+)......|
00000190 55 cd 4a f7 ca c8 ca dc ca 9a cf d0 67 e6 e3 8f |U.J.........g...|
000001a0 ea 2a 27 0a ee 46 b1 61 5e 78 22 f7 c6 13 31 c7 |.*'..F.a^x"...1.|
000001b0 96 f3 f5 12 be 81 2d eb 55 a5 aa 37 a0 4d 1f d6 |......-.U..7.M..|
000001c0 58 f6 76 3a f3 0e 80 3c ab db a3 1a eb cd 64 6f |X.v:...<......do|
000001d0 18 d7 5d e7 a2 37 ef b2 7b 53 aa b1 37 6f 86 bf |..]..7..{S..7o..|
000001e0 a4 de de 3b ce aa b7 72 62 bd a8 53 ed ad 78 72 |...;...rb..S..xr|
000001f0 4f 6a f6 be b8 f8 cd 13 79 3d 99 9a cd 0b b4 bd |Oj......y=......|
00000200

After Boot Camp partition, iMac no longer boots

Hi, I have a 20" iMac Core Duo (the first Intel Mac off the line) running Snow Leopard 10.6.4. I ran the Boot Camp Assistant to partition my hard drive, and it successfully created the "BOOTCAMP" drive. When it asked for my installation CD, I tried loading a Windows installation partition through a USB hard drive, but the assistant would not recognize it as an install disk. So, I closed out of the assistant early, leaving the Boot Camp partition in place. Eventually, I rebooted my machine in an attempt to boot directly from the USB drive and resume installation.
However, I found the machine will not boot at all. It powers on normally, makes the startup sound, but after a few seconds I'm left with just a flashing folder and question mark icon. Holding down Option-key at startup does nothing. Trying to boot from my Snow Leopard disc by holding down C or D during startup does nothing. Holding down Command-S does nothing. Holding down Shift-key does nothing. Resetting the PRAM does nothing.
What can I do? Is there some way I can access the on-board EFI to make sure the correct startup disk is selected? Why am I unable to boot from my CD drive?
Thanks for your help, everyone.

On OSX go to System Preferences the Startup Volume and reset your Windows 7 partition to be the default.
On the next reboot it should automatically boot into Windows.
A PRAM-reset http://support.apple.com/kb/HT1895 can be the cause of this behavior.
Stefan

Windows disc does not update after resizing boot camp partition

When I bought my iMac, it came with a 500 GB HDD. I used bootcamp to make a 200GB windows partition and a 300GB Mac partition. The other day I bought a 250GB SSD, and moved everything from my 300GB Mac partition onto the SSD.
My plan was to use the whole 500GB HDD for windows. So, I deleted the 300GB Mac partition and made it free space on the drive. I then expanded the boot camp partition to take up the whole drive using Mini Tool on windows 7.
Now, windows 7 shows that my drive is 465GB, but when I boot into mac, the bootcamp hard drive still reads 200GB and 300GB are "free space" even though I expanded the drive using Mini Tool.
I tried to fix this by filling up the hard drive with an extra 120 GB so it exceeded the 200GB limit that windows shows. But when I booted back into OSX to see if it had worked, none of the files were showing up in the drive, making me believe that boot camp and OS X are not reading changes I am making to the bootcamp drive when I use Windows.
How can I change this so Disk Utility shows the full size of the disc, like Mini Tool does?
I will try to upload screenshots soon.

Re-sizing Windows partitions is not supported on Bootcamp. It requires a clean install. The other option is using Winclone.
Boot Camp 5.1: Frequently asked questions
How can a Windows partition be resized after Windows is installed?
You need to delete the Windows partition using the Boot Camp Assistant, and start over to change the size of the Windows partition. Back up your important Windows files first.

OS X Yosemite (10.10.3) Boot Camp Partition Issue

I just updated the system to OS X 10.10.3 with the OS X Yosemite Recovery Update too. My boot camp partition went missing!!! I checked Disk Utility to see what is happening, the reply is "Repair the disk", when i click on Repair, it say the disk cannot not be repaired and needs to be reformat. Any one know what is happening?
P.S. I had post this question a while ago and stupidly click on Solved, so if you saw it please ignore it

Use Windows 7 installation media and repair master boot record !! That's it !!

HT5639 On my iMAC using Mountain Lion v. 10.8.3, is there a way to increase the size of my Boot Camp Partition after I installed Windows 8? Thanks.

On my iMAC using Mountain Lion v. 10.8.3, is there a way to increase the size of my Boot Camp Partition after I installed Windows 8? Thanks.

Yes, purchase Paragon Camp Tune for the job.

HT3986 how do you enlarge boot camp partition after windows is installed

how do you enlarge boot camp partition after windows is installed

Welcome to the Apple Support Communities
You can do it with third-party programs, but I don't recommend it because you can damage the hard drive. The best way to do it is to delete your Windows volume and create it again with the size you need

Can i adjust the boot camp partition after xp install

can i adjust the boot camp partition after xp install

Hi,
Paragons CampTune http://www.paragon-software.com/home/camptune/ can do this.
Mac OSX and its BootCamp Assistant or Windows cannot.
Regards
Stefan

Boot Camp partition corrupted after OS X Yosemite Recovery Update

Similar Messages

Maybe you are looking for