Surface Pro microSD card unmounts after waking up from sleep

Anonymous

Hi,

I've recently bought Surface Pro along with a 64 GB sd card. I've noticed that after a long sleep period, the SD card unmounts itself and I can no longer find it under explorer. I need to remove and reinsert it before Windows detects the card again. This doesn't happen if I wake up the device shortly after putting it to sleep, only after a few hours. I wouldn't mind it as much if I didn't have to set up Skydrive again after reinserting. I think it might have something to do with s3 sleep, and might be a driver/software error, but I'm not entirely sure. Any ideas?

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Anonymous

I finally solved this problem by enabled write-caching for the SD card. My card no longer unmounts unexpectedly when changing power modes. I realize this comes with some risk of possible data loss if the card is not ejected properly.

I right-clicked on the SD card device in device manager under Disk Drives.
Then clicked properties
Then went to the policies tab
And then selected "best performance"

So far, no unexpected dismounts and no data corruption. This has also improved the performance of the device as reads and writes of large files seem to be much smoother now.

My theory is that this setting is preventing the slot from powering down while in a hibernated or suspended state.

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Anonymous

Hello Ted

Check out my other post here

http://answers.microsoft.com/en-us/surface/forum/surfpro2-surfdevice/micro-sd-slot-no-longer-recognized-in-the-surface/2705d99f-440a-41a4-9bdf-965f1b092efd

Eventually I changed the card same make/ model, formatted it as NTFS and so far have had no issues at all...........and its been almost 2 months now.

I think Scandisk have issues with quality control ?

Try a full format on NTFS , it does take sometime

If it still has issues after that I would use the card in your phone or something else and by another one brand new for the slate.

It worked for me.

I guess we will get the same issues when the 128GB MSD card comes out!

Good luck

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Anonymous

Simply change the driver to generic USB mass storage.

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78 additional answers

Anonymous

2013-12-05T05:55:36+00:00
I had the Samsung ser 7 slate win8.1 pro 64GB and previously thought it a good idea to upgrade to the surface2 pro 128GB as the portability of such a system for me is essential ( I live in Dubai and was traveling to the US on a business trip and you cant buy the surface pro 2 in Dubai) Anyway the reason I'm telling you this is that there are 2 major flaws with the surface 2
1. The mouse lagging and disconnecting whenever it feels like it (strange the keyboard never disconnects?)
2. The micro SD disconnecting every now and then for no apparent reason. Which means I dare not store sensitive information on the SD card)
I'm using the same wedge mouse / Microsoft keyboard and Micro SD Card as I did with the slate of which never had these issues at all.

Its got to such an annoying stage now that I'm seriously thinking of going back to the slate and ditching the surface pro 2, although obviously its not something I want to do after shelling out 1,500 U$D.

Come on Microsoft do something about it!
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Anonymous

2013-12-04T15:53:32+00:00

FWIW, Ive had this issue from day one when using the same SanDisk card as previous posters. I hoped 8.1 would resolve this, but Im still experiencing the dismounts. Ive tried another card (Kensington) with the same issue.

A fix or workaround for this would be most welcome.
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