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SDHC not read in Windows 7 via Bootcamp

I have a Sandisk Extreme Pro 45MB/s 8GB SD card - it works fine in OS X but in Windows the card fails to be read (Windows doesn't recognise it at all). The driver for the SD Card installed from Bootcamp is a BroadCom one, if I remove that and use a generic one, Windows recognises the card being inserted (by playing a little sound) but device driver shows the SD drive cannot start. Other cards work fine in Windows so I suspect this is a problem with the Broadcom driver (64bit by the way), and just to re-iterate the card reader is fine in OS X so it can't be a hardware fault.


I know I can just use OS X to read the cards, but this can be inconvenient when I am working in Windows 7.


Has anyone come across this issue? Is there an updated driver I can get outside of BootCamp.


Cheers


Ian

MacBook Pro, Windows 7

Posted on May 31, 2011 12:26 PM

Reply
25 replies

Aug 19, 2011 11:38 PM in response to IanBlackburn

Same problem over here.


MBP early 2011, windows 7 in bootcamp. SanDisk Extreme Pro 45 MB/s 16GB. Works under OS X but windows does not recognize the card. Other SD cards (tried an older 4GB entryx class 6 card) works fine.


Probably something with the driver for the SD card slot.


Since I installed win 7 just recently, I may not have all updates. The service pack 1 is installed however.

Another (older) windows 7 laptop can read my card, so in principle windows should recognize it.


No solutions found so far...

Feb 16, 2012 10:56 AM in response to IanBlackburn

bump


Same issue. SD cards read fine in boot camp, but not SDHC. I'm unable to locate another driver that works properly. For now, I have to do all my read/writes in MacOS, and use the MacHD partition to move files in and out of Windows.


Surely other laptop manufacturers use a broadcom reader and test it to make sure it reads all formats (not sure why apple didn't). If someone has another system that uses a Broadcom reader, they could pull the driver from it and put it on bootcamp. All my other systems have Ricoh card readers.

May 7, 2012 7:03 PM in response to IanBlackburn

Hi, I have same problem with my Sandisk 8 Gb Ultra. I've tried plenty driver but stil didn't work. Then I found this page: http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/Sandisk-Cruzer-not-rec ognized-by-Windows-7/td-p/233208. They said Sandisk have problem with Windows 7, and you can try their method to make it works. I'm not yet trying it, but I've tried changing sd card with my other sdcard (micro sd actually, with adapter, branded V-GeN) and it works with original Apple broadcom sdcard driver (from bootcamp assistant). So the problem not with Apple or SD card reader, but with Sandisk and Windows 7. So, do above method, or change your sd card, or change your OS, til solution come up with this.


PS: There is other solution. Just open your sandisk card on Mac, then copy your file to Mac partition, then you can open it from Windows 7 (to modify, you have to copy it to Windows partition first). And vice versa.

Sep 4, 2012 6:57 AM in response to IanBlackburn

I'm no expert when it comes to computer scripts but here's how I see it.


If you use an SD card on MACs on initial setup, then the Mac will code out within the disk so that its

Macintosh writeable.

For some reason this coding only allows the SD cards to be read on full WINDOWS computers (NON-BOOTCAMP)


HOWEVER,

The only solution I found so far, is to set up the SD initially on BOOTCAMP-WINDOWS, which then codes the

writeable scripts or whatever, universal - Win / Mac


Pretty tedious I must say.

Oct 8, 2012 12:46 PM in response to IanBlackburn

Same issue on my Macbook Pro 15".


The thing is that I only run a clean installation of Windows 7 64. No OSX but bootcamp installed.


I've tried all of the above suggestions to solve the issue.


When inserting a Sandisk Extreme III 4Gb I have no problems. When inserting my 8 gb Sandisk Extreme Pro SDHC 45 M/sec nothing is detected.


I just tried to delete Windows and made a clean install of OSX Lion. Everything worked just fine (card reader and all). Then removed OSX and made a Windows only installation. Same problem again.


Who to blame?

  • Sandisk proved that they can make a driver that works (in Mac at least). Also works on a "normal" PC with windows 7 installed.
  • Apple - (It works fine in OSX)
  • Microsoft - Works fine on a PC

It looks like this issue fall's between two chairs unless Apple are trying to make Microsoft look bad.


But no matter what - I just want it to work....

SDHC not read in Windows 7 via Bootcamp

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