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windows 8 does not recognise Macintosh HD, No drive Letter

I re partitioned my mac drive using Yosemite before doing a clean install. and After I installed Windows 8.1 on Boot Camp.

My problem is Windows does not see Macintosh yet Disk Management can see the partition but no drive letter and cannot assign drive letter.

I have File Vault turned off.

Please Advise, Regards

MacBook Pro (Retina, 13-inch, Late 2013), OS X Yosemite (10.10)

Posted on Oct 17, 2014 2:43 PM

Best reply

Loner T

Level 9

59,471 points

Posted on Oct 17, 2014 7:14 PM

Yosemite logical volumes cannot be read on Windows bootcamp anymore since they are not HFS+ volumes but they are now CoreStorage. Till Bootcamp is updated with drivers to allow read access to CoreStorage HFS+, you have lost functionality by upgrading to Yosemite. 😟.

You can verify this on the OS X side by running diskutil cs list in OS X terminal. If it returns any output, Windows cannot read such volumes.

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53 replies

Loner T

Level 9

59,471 points

Dec 24, 2015 6:49 AM in response to bigmim

From https://www.paragon-software.com/home/hfs-windows/features.html

Full Features

New features
Key features

New features

NEW Full Windows 10 support
NEW Improved Product Performance

Key features

Full access to HFS+/HFSX partitions (read and write)
Unprecedented high HFS performance and stability
Automounting and management via "Disk Management" console
Full compatibility with Boot Camp drivers
Support for journaling
Unified Installer for 32 and 64 Bit systems
Files and folder with “.” as the first symbol of file name are shown as hidden
USB 3.0 ready

It does not support CoreStorage volumes.

bigmim

Level 1

0 points

Dec 24, 2015 8:22 AM in response to Loner T

I don't see "it does not support CoreStorage volumes"

Loner T

Level 9

59,471 points

Dec 24, 2015 8:49 AM in response to bigmim

1. Please see http://kb_wp.paragon-software.com/article/70 .

2. Be very careful with the recommendation to revert CS volumes. This also implies that CS is not supported, but only HFS+/HFSX is supported.

bigmim

Level 1

0 points

Dec 24, 2015 11:42 AM in response to Loner T

Unfortunately my Mac, that is late 2014, is core storage and fusion drive, so no way.

Thank you very much for the support Loner T.

Loner T

Level 9

59,471 points

Dec 24, 2015 11:49 AM in response to bigmim

You can use an external shared disk, if necessary.

bigmim

Level 1

0 points

Dec 25, 2015 1:09 PM in response to Loner T

Hello Loner T,

I have a 250gb sony SSD, do you know where I can find a step by step procedure?

And what about the possibility the main and the external can see each other?

Thanks

Loner T

Level 9

59,471 points

Dec 25, 2015 4:05 PM in response to bigmim

Format the external SSD as an JHFS+/GPT disk. It should be readable from both OSX (you can write from OSX too), and Windows. If you need read-write from both, use FAT or exFAT format.

bigfr0g

Level 1

4 points

Apr 11, 2016 7:44 AM in response to creativeprogramming

Thanks alot for your solution!

It also works with MacOS X El Capitan

windows 8 does not recognise Macintosh HD, No drive Letter