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Can't boot into windows after resizing partitions

I tried to resize my bootcamp and mac partitions recently

I cannot boot into windows now

Get an error about missing MBR

Do you think you could help me here?

I read about using GPT fdisk on another thread

These are the results I got from it

Wanted to check before doing anything


Sanjayas-MacBook-Pro:~ sanjaya83$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 38913/255/63 [625142448 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 - 349609376] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 350019016 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 351289344 - 273852416] Win95 FAT32L

Sanjayas-MacBook-Pro:~ sanjaya83$ sudo gdisk /dev/disk0

GPT fdisk (gdisk) version 1.0.1


Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

NOTE: Write test failed with error number 1. It will be impossible to save

changes to this disk's partition table!

You may need to deactivate System Integrity Protection to use this program. See

https://www.quora.com/How-do-I-turn-off-the-rootless-in-OS-X-El-Capitan-10-11

for more information.


Partition table scan:

MBR: hybrid

BSD: not present

APM: not present

GPT: present


Found valid GPT with hybrid MBR; using GPT.


Command (? for help): p

Disk /dev/disk0: 625142448 sectors, 298.1 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): 55739070-E42E-4414-947D-F1AAD2EB65D0

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 625142414

Partitions will be aligned on 8-sector boundaries

Total free space is 1453 sectors (726.5 KiB)


Number Start (sector) End (sector) Size Code Name

1 40 409639 200.0 MiB EF00 EFI System Partition

2 409640 350019015 166.7 GiB AF00 Customer

3 350019016 351288551 619.9 MiB AB00 Recovery HD

4 351289344 625141759 130.6 GiB 0700 BOOTCAMP


Command (? for help):

MacBook Pro (13-inch Early 2011), OS X El Capitan (10.11.1)

Posted on Dec 1, 2015 5:12 PM

Reply
152 replies

Feb 3, 2016 7:17 AM in response to zero7404

I thought to check my RAM and see if I had faulty RAM. I ran 4 itterations of Rember to check and all 4 passed.


is there other hardware checks i can do to make sure the ssd and board do not have any faults/defects ? I want to isolate the problem and try to fix it.


it seems thisi type of issue has been recurring and common on OS 10 in general ....

Feb 3, 2016 8:27 PM in response to Loner T

1. yes, 256GB

2. not that I'm aware of.

3. hopefully not. just got done running Apple Diagnostics. no hardware issues detected.


I would say this issue is software related. let me ask, do you have this issue and what frequency ?

Should I go into recovery mode and run DU from there instead ? or is it the same thing as running it as admin with OS 10 loaded normally ?

Lastly, given the volume file count, is there any way at all to determine which app or the OS is causing this ?


thanks again for all your help I appreciate it.

Feb 4, 2016 4:40 AM in response to zero7404

Paragon (and many similar tools) modify Apple standard Kernel Extensions (KEXTs). They also cause problems with native file handling. If you can temporarily uninstall Paragon and watch for a week for any signs of inode/disk issues, it will shed some light. Yosemite (and later OS X versions) includes a NTFS checker which can also conflict with Paragon.

Can't boot into windows after resizing partitions

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