09-26-2016 03:35 PM
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  1. garryknight's Avatar
    Every now and again I hear a noise similar to the one you get when you unplug a USB device. Then, a second or so later, there's a similar noise and a File Manager window opens showing the D drive, which is a 128 GB Sandisk Extreme micro-SD card. It's as if the Surface Pro lost the card for a second then found it again.

    When this happened just now, I also got a pop-up dialog saying, "We're unable to find the OneDrive folder because the drive is unavailable". The OneDrive folder is on the card but the OneDrive icon isn't in the system tray. I'm guessing that my OneDrive isn't being synced.

    The Surface is running Windows 10 version 1511, build 10586.318 and it's the i7 8GB 128GB version. If I start an error check on the drive, I get the message "You don't need to scan this drive", so it looks as if the card is OK.

    Could this be a power management issue, or something else?
    Last edited by garryknight; 06-13-2016 at 06:10 PM.
    06-13-2016 06:00 PM
  2. Vasrias's Avatar
    I have the same problem with my 16 gb SanDisk card. I thought it is probably broken after years of use and just ordered a new 128gb one on amazon (I haven't received it yet). But now I'm curious if it isn't a problem of the card.

    It's the exact same problem. Including the OneDrive message and the "scan the device" thing. But one additional thing is happening: After the card is recognized again, OneDrive is searching for changes in the folder and syncs ALL folders even though I have only one folder set to sync in the settings. This caused a big battery drain, which put my usage time on battery below 2 hours with a full charged battery.
    06-14-2016 07:29 AM
  3. smbishop's Avatar
    Happening to me as well. I don't have my onedrive folder on it though...
    06-14-2016 08:30 AM
  4. Vasrias's Avatar
    Oh and I am on build 14361, but had it on 14352 (or what the number was) as well.
    06-14-2016 08:55 AM
  5. garryknight's Avatar
    As a follow-up, I can't be sure this happened on the same day but when I opened an Excel .xlsx spreadsheet on my PC that syncs in Dropbox with my other devices, it had been corrupted and large parts of various sheets were missing. I managed to retrieve the complete file from my SP3 so I'm now wondering if it 'forgot' the micros-SD card while trying to sync that file. And, of course, this is why I don't keep originals in my Dropbox but in other folders which I manually sync to my Dropbox folder.
    06-14-2016 09:53 AM
  6. anon(7901790)'s Avatar
    You may have a card going bad. It happens.

    I was using a Sony card and this kept happening. I just replaced it a couple days ago with a Sandisk Extreme Plus 128GB and so far it's working great.

    My SP3 seems to be running cooler and it's not as erratic either.

    Posted via the Windows Central App for Android
    RohanRonQM likes this.
    06-20-2016 01:21 AM
  7. garryknight's Avatar
    My card is new. About a couple of weeks old. Chkdsk tells me that the card is fine.
    RohanRonQM likes this.
    06-20-2016 12:35 PM
  8. anon(7901790)'s Avatar
    Update: I had this problem with my new card the other day.

    So far, the remedy seems to be to shut down your SP3: Start>Power>Shutdown. When I turn it back on, it doesn't "forget" the microSD card.

    Closing the lid and putting to sleep for a while seems to cause the problem.

    My old card was going bad though. Since replacing it, I have noticed an improvement in my SP3's performance.
    RohanRonQM likes this.
    06-21-2016 03:51 PM
  9. Guzzler3's Avatar
    Have you tried reformatting the MicroSD card?

    Download the SDFormatter from https://members.sdcard.org/downloads/formatter_4/ Just get the Windows version.

    Remember to BACKUP ANYTHING AND EVERYTHING on the SDcard before you use this program. You have been warned!!!

    The problem I have found is that sometimes the card gets "messed up" over time, or just didn't come from the manufacturer properly formatted. The above program tends to fix things.

    It that doesn't work... Other things can be tried.
    06-21-2016 09:50 PM
  10. anon(7901790)'s Avatar
    I don't think the issue is with the microSD card. I think it is with OneDrive. My OneDrive just told me that it couldn't find the OneDrive folder. I checked in Windows Explorer and it showed my microSD card was there and there and working.
    06-22-2016 05:24 PM
  11. Vasrias's Avatar
    Yeah, I got my new card today and have the same problem.
    06-22-2016 07:02 PM
  12. garryknight's Avatar
    I also get the OneDrive thing from time to time. But I think it's just coincidental that OneDrive is trying to sync while the card is 'lost'. I still think it's down to Windows micro-managing the power to the card. When you wake the Surface from sleep, it's going to take some time for the card to be accessible again, even if that's just micoseconds. If Windows looks for the card during that time, it will think that the drive is empty.
    06-23-2016 09:25 AM
  13. anon(7901790)'s Avatar
    Good point. That would be why shutting down seems to work better. When starting back up, OneDrive doesn't start immediately, and the microSD card has time to power up and be recognized by Windows. The fix is when the device wakes up from sleep, OneDrive should pause for a period of time before checking the OneDrive folder. That would give the microSD card to power up and become readable by Windows.
    06-23-2016 03:23 PM
  14. Vasrias's Avatar
    But I have this during active usage of my SP3. Like while reading a pdf, suddenly the file explorer opens on the sd drive.
    06-23-2016 04:19 PM
  15. garryknight's Avatar
    Yes, me too, Vasrias. More often than the OneDrive error. Even when all it's doing is sitting there idle in the dock. Oh, and it happens when the SP3 is in the dock or out of it.
    06-23-2016 04:42 PM
  16. anon(7901790)'s Avatar
    I'm starting to lean back towards it being a OneDrive issue. My OneDrive "lost" the connect to the card, this time while my SP3 was awake.


    Aaaaaand it did it again this morning.
    Last edited by gernerttl; 06-29-2016 at 01:48 PM.
    06-28-2016 07:29 PM
  17. anon(7901790)'s Avatar
    Aaaaand it did it again, just a few moments ago. :/
    06-29-2016 05:00 PM
  18. Vasrias's Avatar
    I tried to put my OneDrive folder on my main drive and have the card ejected since about 2 days. No problems so far. I put now my card back in now, but let the OneDrive folder on my sdd. I report back if I know something.
    06-29-2016 05:14 PM
  19. anon(7901790)'s Avatar
    I did the same, but I'm keeping mine on the SSD for now. I wonder if it could be Bitlocker causing it to glitch...

    Here are some of my theories as to why:

    Hardware:

    -Bad microSD card - Unlikely, since we all seem to have the same problem using different card makes and models.

    -Bad microSD reader - A little less unlikely, but possible.

    -Power getting to the reader - Possible, but why would it affect only the card reader and not the system as a whole?

    Software:

    -OneDrive - Possible, but since we all seem to have the same problem when synching to a microSD card, it would seem unlikely.

    -Windows OS - Most likely, since the OS handles the actual file read/write with the microSD card reader and card. Possible driver issues?

    -Windows OS - Power management not powering up the microSD card reader fast enough coming out of sleep mode. Unlikely, because I've and others have had it happen when not in sleep mode and being actively used.

    -Bitlocker - Again highly likely. I've had issues with accessing my microSD card sometimes. It shows up as "unlocked" but when I double click the drive, it says, it was unlocked and won't open the drive. I've had to eject and reinsert the card to get it work.
    Last edited by gernerttl; 06-30-2016 at 02:14 PM.
    06-30-2016 01:45 PM
  20. Vasrias's Avatar
    But I have Bitlocker deactivated on my microSD card. I guess it's an W10 and OneDrive problem. I don't know since when it is possible to save your OneDrive folder on a microSD card (in FB Hub are lots of requests to make that possible), but it seems this implementation is buggy and needs debugging.
    07-01-2016 06:47 AM
  21. garryknight's Avatar
    I also have Bitlocker deactivated (or rather, never activated) on my microSD card. By what I assume is pure coincidence, Bitlocker nearly gave me a heart attack today. I booted my SP3 and got a screen asking for my Bitlocker key. Needless to say, as I've only had it a short time, I hadn't got around to saving it yet. But I chose the 'Continue to Windows 10' option and it booted OK, so I've no idea what the problem was. But I digress (I think)...

    I got two notifications almost simultaneously this afternoon. The first was the usual 'drive lost' chimes, the second was a message that OneDrive couldn't be found as drive D: was offline. So there could be a connection. But then, if the drive does get lost, it's only a matter of time before OneDrive notices anyway. If I got the messages the other way round, I'd almost be convinced that OneDrive is causing the problem.
    07-01-2016 01:02 PM
  22. anon(7901790)'s Avatar
    But I have Bitlocker deactivated on my microSD card. I guess it's an W10 and OneDrive problem. I don't know since when it is possible to save your OneDrive folder on a microSD card (in FB Hub are lots of requests to make that possible), but it seems this implementation is buggy and needs debugging.

    Windows 8/8.1 allowed for OneDrive to sync with a microSD card; and it did so with no problems. I NEVER had this problem on Windows 8.1.

    Initially, when I upgraded to Windows 10, I couldn't sync my OneDrive to my microSD. It was an OS issue, since OneDrive is integrated into the OS now.

    You could sync to a microSD, but the process was clunky and not entirely reliable. It was after upgrading to Windows 10 that I started getting errors that my microSD card was offline.

    Eventually, Microsoft updated the OS/OneDrive to sync with a microSD card, but I don't think they implemented it very well.

    The SP3 and Windows 10 relationship hasn't been the best, at least in my opinion. I don't have an SP4 to actually compare to though.

    So that is why I'm leaning towards OS/OneDrive.

    I also have Bitlocker deactivated (or rather, never activated) on my microSD card. By what I assume is pure coincidence, Bitlocker nearly gave me a heart attack today. I booted my SP3 and got a screen asking for my Bitlocker key. Needless to say, as I've only had it a short time, I hadn't got around to saving it yet. But I chose the 'Continue to Windows 10' option and it booted OK, so I've no idea what the problem was. But I digress (I think)...

    I got two notifications almost simultaneously this afternoon. The first was the usual 'drive lost' chimes, the second was a message that OneDrive couldn't be found as drive D: was offline. So there could be a connection. But then, if the drive does get lost, it's only a matter of time before OneDrive notices anyway. If I got the messages the other way round, I'd almost be convinced that OneDrive is causing the problem.

    That's pretty much what happens with me as well. I wonder if it could be a driver issue, which would lead to an OS/OneDrive problem. I reinstalled the card reader drivers and now it's a wait and see.
    07-01-2016 01:48 PM
  23. Guzzler3's Avatar
    Have you tried to manually assign a drive letter to the MicroSD, via Disk Manager?
    07-02-2016 10:42 AM
  24. garryknight's Avatar
    Have you tried to manually assign a drive letter to the MicroSD, via Disk Manager?
    Not sure who you're asking, or if it's a general question, but I haven't done so, no. The first time I inserted it, it showed up as 'SDXC (D:)" and that suited me, so I left it. Any storage devices plugged into the USB port show up as E: so I haven't seen a need to specify a different drive letter.
    07-02-2016 01:49 PM
  25. Guzzler3's Avatar
    Not sure who you're asking, or if it's a general question, but I haven't done so, no. The first time I inserted it, it showed up as 'SDXC (D:)" and that suited me, so I left it. Any storage devices plugged into the USB port show up as E: so I haven't seen a need to specify a different drive letter.
    It's a general question to everyone who is having issues.

    Even if it shows up at auto set to "D:", try manually setting it to "D:" and see if you continue having issues.

    I have run across this problem in the past from XP and on up with keeping some sort of external drive connected to a computer. When the system wakes up, it takes awhile for the drive letter to be reassigned, and has caused issues with settings or programs that need the drive. It's a quick and simple thing to try.
    07-03-2016 09:22 AM
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