Bootcamp partition disappears after upgrading Windows (I have read other topics)

Question

Level 1

0 points

Bootcamp partition disappears after upgrading Windows (I have read other topics)

Hi,

After I upgraded into Windows 10 from 8.1 pro within the Windows partition, the Bootcamp partition no longer shows up on El Capitan (in Finder and Startup disk in System Preferences), so I can't get access to the files in that partition. I have checked the Disk Utility and see that there is only my Macintosh HDD. However, when I click on the APPLE SSD SM0512F Media, I can still see the Bootcamp volume, and I can also boot into Windows when turning on my Macbook.

I contacted Apple Support, but their advice is helpless. I had a look on the similar questions here and followed to install gdisk. However, it seems that my situation is quite different since the MBR is protective, not hybrid, so I'm not sure how to properly proceed.

Can anyone help me on my problem? I really appreciate your help. Note that I also have Tuxera NTFS 2015 on the Macbook as well.

MacBook Pro with Retina display, OS X El Capitan (10.11.1)

Posted on Oct 25, 2015 3:45 AM

Reply

Answer 1

Loner T

Level 9

59,536 points

Oct 25, 2015 5:16 AM in response to huybdoan

1. Does Windows boot properly if you shut down, start up your Mac and hold Alt/Option and select Windows?

2. Can you switch to Windows and back from System Preferences and Boot Camp Control Panel?

Reply

Answer 2

huybdoan Author

Level 1

0 points

Oct 25, 2015 5:33 AM in response to Loner T

Thanks Loner T for your reply.

1. Yes, I can boot into Windows properly.

2. What do you mean by BootCamp Control Panel? In System Preference in El Capitan 10.11.1, I have tried to see whether Bootcamp HD is available in Startup Disk, but I see nothing there.

Reply

Answer 3

Loner T

Level 9

59,536 points

Oct 25, 2015 5:47 AM in response to huybdoan

There is a Bootcamp Control Panel which is installed on the Windows side - https://help.apple.com/bootcamp/controlpanel/5.1/ - which allows control of Apple hardware on the Mac in Windows. Do you have this installed on the Windows side?

Reply

Answer 4

huybdoan Author

Level 1

0 points

Oct 25, 2015 8:41 AM in response to Loner T

Yes, I have it and update to 6.0. Then BootCamp partition appears again in Finder on El Capitan. Thank you so much. How can I forget to check Apple Software Update. However, the Startup Disk in System Preferences and Disk Utility on El Capitan still doesn't show the BootCamp HD.

Reply

Answer 5

Loner T

Level 9

59,536 points

Oct 25, 2015 11:46 AM in response to huybdoan

Do you have any third-party NTFS software?

Reply

Answer 6

huybdoan Author

Level 1

0 points

Oct 25, 2015 3:41 PM in response to Loner T

Yes, I have Tuxera Ntfs 2015. Should I remove it and re-install again?

Reply

Answer 7

Loner T

Level 9

59,536 points

Oct 26, 2015 4:57 AM in response to huybdoan

You have two NTFS drivers on the OS X side now. Apple's read-only NTFS driver and Taxer's read-write. They both race for it, whoever wins the race controls it.

This leads to ...

1. System Preferences issues - which are well documented by Tuxera.

2. It can lead to NTFS corruption, which can cause further issues, sometimes severe.

3. Tuxera needs to work with Apple, get their driver certified, so System Preferences will honor both systems. It is an expensive process, which the third-parties do not wish to pursue. NTFS-3g (2010) has a control panel, which allows selective control. You should ask Tuxera about it.

4. Remove Tuxera, if you want the Windows partition to show up in System Preferences.

Reply

Answer 8

huybdoan Author

Level 1

0 points

Oct 26, 2015 5:09 AM in response to Loner T

Thanks Loner T. You helps me a lot. The BootCamp partition does appear on Startup Disk and Disk Util.

I just wonder whether any NTFS read/write software avoids what you mention, say NTFS Paragon?

Reply

Answer 9

Loner T

Level 9

59,536 points

Oct 26, 2015 5:31 AM in response to huybdoan

All third-party NTFS tools have the same issue. Use NTFS-3g (2010) and test. Tuxera, Paragon, MacDrive,... have forgotten basic principles of keeping the file systems clean and checked.

Reply