Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: SD Card shows the right size, but no file in the folders!

26 Jan 2014   #1
IMAyNeed

Windows 7 Ultimate 64-bit
 
 
SD Card shows the right size, but no file in the folders!

I copy 20 GB data to SD Card.
In Windows Explorer, I click on the drive (G: ) and it says that 20 GB is used.
I go to the main folder that I copied the files (G:\My Files), it shows as 7 GB.
I go to the sub folders, and (just examples) folders A, B, C, D shows the files correctly, but folders E, F, G, H, even though it shows the folders, there are no files in it. (It just shows G:\E, not G:\E\folder1)
No file is hidden. I tried formatting and using different machines (and a phone).
If the files are not there, how come 3 computers shows the size correctly on the drive; if the files are there, where are they?
How can I solve this problem.
Thanks.


My System SpecsSystem Spec
.
26 Jan 2014   #2
youravinalarrrf

Windows 10
 
 

Test it with H2testw v1.4 SD Card Tester to make sure you've not been sold a fake which shows larger capacity than it really has. Download available here http://www.heise.de/ct/Redaktion/bo/...2testw_1.4.zip

A bit more reading here GoPro User Forum ? View topic - SD Card testing: please get involved
My System SpecsSystem Spec
26 Jan 2014   #3
dsperber

Windows 7 Pro x64 (1), Win7 Pro X64 (2)
 
 

What size is the SD card? 64GB??

And is it formatted FAT32 or NTFS??

Windows has a problem with FAT32 and larger than 32GB, depending on the device used as the "reader" or "writer". If the card is in your phone or portable music player player then it's a function of the firmware in that device whether or not a FAT32 card larger than 32GB will be properly seen and supported.

Best bet (and 100% guaranteed success) if you must have FAT32 on a 64GB card is to:

(1) use an external USB card reader such as this one for all WRITE operations, including FORMAT.

(2) use GUIFormat to FORMAT the card to FAT32 (while it is in the external card reader)

Once the SD card has been formatted and/or written-to using the external card reader, don't forget to "safely remove hardware" and then unplug the reader, and remove the card, and reinstall it into your portable music player or phone.

My experience (with a Cowon J3 music player, which was designed to support only a 32GB microSDHC card) is that it WILL accept and READ a 64GB FAT32 card only that has been written to via an external card reader. Using the J3 itself as the "reader/writer" (which is fine for a 32GB FAT32 card) will fail with a 64GB FAT32 card. So all of the maintenance of the music files on my 64GB card are handled with the card inserted into the external card reader, rather than with it inserted in the J3.

Theoretically Windows and FAT32 support large cards (e.g. 64GB and larger), but the firmware of the device in which the card is read/written is really the issue, and how it presents information (correctly or incorrectly) to Windows is where the problem starts. But going through an external USB card reader like the one I linked to above seems to be universally 100% successful in dealing with large FAT32 cards.
My System SpecsSystem Spec
.

26 Jan 2014   #4
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

Try a Command Prompt directory list on the card.
Assuming the card is E:\

dir E:\ /s /a
My System SpecsSystem Spec
28 Jan 2014   #5
IMAyNeed

Windows 7 Ultimate 64-bit
 
 

Card seems to be defective according to the test.
Ok, that can be.
But how come Windows Explorer shows the exact size as it should be on the drive.

G:\ = Used Size: 20GB (As it exactly should be)

G:\Folder = Size: 7GB

How come?
How come the drive is 20 GB full and the only folder in it has 7 GB and the files are not hidden or anything?

And

G:\Folder\Subfolder1 = All files there.
G:\Folder\Subfolder2 = All files there.
G:\Folder\Subfolder3 = All files there.
G:\Folder\Subfolder4 = All files there.

G:\Folder\Subfolder5\F1\FF1 = Empty
G:\Folder\Subfolder5\F1\FF2 = Empty
G:\Folder\Subfolder5\F1\FF3 = Empty
G:\Folder\Subfolder5\F1\FF4 = Empty

G:\Folder\Subfolder6 = Empty
G:\Folder\Subfolder7 = Empty
G:\Folder\Subfolder8 = Empty
G:\Folder\Subfolder9 = Empty

Where are the rest of the files are going in the drive. THe drive shows the exact used size both in different computers and phones as 20GB, but files do not show up.

The card can be defective, my questions are mostly technical right now, just to learn that how both Windows and Phone software can show the right size and even the main folders, but not the files or subfolders in it. Where are those gone? They must be in the drive as the right size appears in Windows Explorer.

Cards are 32 GB and 64 GB for technical info.
The heise.de test showed the 32 GB defective. Haven’t tested 64 GB yet.
Tried with external drive and formatting with guiformat. (Did the heise.de test after these).

As I said, I just want to learn that how come the right size appears, as for years when an SD Card is corrupted, usually the files seems to be gone completely (not showing any folders) and the size dissappears also, but in these ones right size is there and the folders are there, just no files.

(Sorry for the repeats, it is a habit I couldn’t change -yet-)
My System SpecsSystem Spec
28 Jan 2014   #6
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

This is a card you use in your phone, correct?

Next time you have it in Windows, Disk Management - Post a Screen Capture Image

and

Try a Command Prompt directory list on the card.
Assuming the card is E:\

dir E:\ /s /a > C:\SDcardlist.txt
attach SDcardlist.txt to a post (use the paperclip icon on the post window menu to attach a file)

Thanks
My System SpecsSystem Spec
28 Jan 2014   #7
youravinalarrrf

Windows 10
 
 

Can't help you with the technical side of thiings but I bought a Sandisk 32GB card from ebay a couple of years ago and the H2testw v1.4 SD Card Tester results showed the following

Warning: Only 31987 of 31988 MByte tested.
The media is likely to be defective.
1.9 GByte OK (3991552 sectors)
29.3 GByte DATA LOST (61517824 sectors)
Details:47.1 MByte overwritten (96576 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
29.2 GByte corrupted (61421248 sectors)
17.8 MByte aliased memory (36608 sectors)
First error at offset: 0x0000000079cf8000
Expected: 0x0000000079cf8000
Found: 0x0000000000000000
H2testw version 1.3
Writing speed: 1.90 MByte/s
Reading speed: 3.68 MByte/s
H2testw v1.4

It turned out the 32GB card was in fact a 2GB card with counterfeit firmware on it (made in China) making it appear to Windows as a 32GB card until you got past the real 2GB limit of the card.

Both the packaging and card looked authentic but further confirmation that it was a counterfeit card was obtained when the barcode on the packaging was scanned and showed the item did not exist. Needless to say I obtained a full refund and the seller was banned. Apparently these counterfeit cards are not uncommon so I now always buy from a reputable source......lesson learned!
My System SpecsSystem Spec
28 Jan 2014   #8
dsperber

Windows 7 Pro x64 (1), Win7 Pro X64 (2)
 
 

Don't think "defective" SD card.

Think "counterfeit".

You get what you pay for, and if you buy a card because of its "great price", you must really be careful. Sure, none of us wants to pay full retail and we all want to get a good deal, but you need to know your vendor source.

EVERY card you buy no matter what the source should be verified using H2Testw as was mentioned. This is 100% true and should be adhered to 100% of the time. I, too, bought what was supposed to be a SanDisk 32GB microSDHC card a few years back at a "great price", and it was a 2GB card revealed by H2Testw. We all will run into it at one time.

If you get a "lemon" (i.e. fake/counterfeit) return it if possible, if you can.
My System SpecsSystem Spec
28 Jan 2014   #9
IMAyNeed

Windows 7 Ultimate 64-bit
 
 

Must be counterfeit.
Yes, got at a good price, but lost the money I guess (I am in a different city now).
I was hoping that they would work at least in ntfs format, but if they are not real at all, it wouldn’t work either.
Thanks for the help and advices.
(Still will check the 64 gb now, but not much hope)

Still: How come after 20GB copying on it, Windows Explorer is showing that the card is 20 GB full even after removing the card and putting it on a different machine or a phone?
That part is still a question on my mind.
(Maybe it is just corrupted data as shown in the test)
My System SpecsSystem Spec
28 Jan 2014   #10
dsperber

Windows 7 Pro x64 (1), Win7 Pro X64 (2)
 
 

Quote   Quote: Originally Posted by IMAyNeed View Post
Still: How come after 20GB copying on it, Windows Explorer is showing that the card is 20 GB full even after removing the card and putting it on a different machine or a phone?
That part is still a question on my mind.
My guess is that the real existing 2GB covered where the file system sectors had been written, even though none of the corresponding data was ever written to where it was supposed to go since that area didn't actually exist.

So if you look at the "table of contents", it looks like the data is using so much of the capacity. But when you go out and then try to read the data, it's not there to be found.

Hey, how does one create a "fake" 32GB-appearing device when it only has 2GB for real? How can it be engineered so that the WRITE operations appear to be successful, and yet nothing actually got written?? I don't know, but these counterfeiters clearly know what they're doing.

Anyway, just write it off to experience. And be thankful for H2Testw.
My System SpecsSystem Spec
Reply

 SD Card shows the right size, but no file in the folders!




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
External HDD shows Unknown, no size, Not Initialized
My external HDD has crashed after unplugging it accidentally while using it. I believe the directory structure has been corrupted. The external HDD shows Unknown, no size, and Not Initialized on the Disk Management screen: I have tried using MiniTool Partition Wizard as described in this...
Hardware & Devices
Windows 7 repair shows 0mb partition size
I put a computer together a week ago and the first time I installed windows 7 and then installed the graphics/motherboard drivers it did not boot back up. It would say that windows failed to start (it wouldn't give me a reason) and then would go into attempt start-up repairs. I let this run a few...
General Discussion
Access file size increased in size by 50%
I have MS Access 2010 & have a database that has been about 45 MB in size for 2 years. About a month ago I noticed it now is 67 MB. I compact & repair every time I save it which is twice a month. I've gone back & did a compact & repair on the 67 MB file but it does not change. I must have looked...
Microsoft Office
HDD shows up, shows data, no folders or files visible
I just reinstalled Windows 7 64bit after a crash. I reconnected my second HDD to the machine where prior to the crash I stored all my photos and music. The problem is that there appears to be no folders or files visible in the drive, despite it showing over 300GB of used space. See the...
Installation & Setup
WMP12 shows 0 bytes file size
Hello, I've got a problem with WMP12, all the files I'm playing with the player are in my Music library. http://i33.tinypic.com/dzgefa.jpg How can I solve this? The songs plays fine, but why is it showing 0 bytes?
Music, Pictures & Video
after system restore, new hard drive shows wrong size
Dell Inspiron E1505 running win7. Bought a new 500 Gb hard drive. I created a win7 system image from my old 50 Gb hard drive and restored it to the new drive, but now the new one is showing 50 Gb size with 412 Gb Unallocated! I tried to "extend volume" from win7 disk manager but the option...
Backup and Restore


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 03:54.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App