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: USB Thumb drive not working properly

08 Apr 2013   #1

Windows 7 Home Premium SP1
USB Thumb drive not working properly

I recently bought a 64Gb USB thumb drive. I copied files on to it, but when I tried to access them afterwards I found only empty folders on the drive. I tried it on a different computer, and it works fine.

The IT guys at work have never heard of such a thing.

My home computer runs Windows 7 Home Premium SP1 (64 bit). The other computers I tried run Win7 Professional 64 bit

Any ideas or help with this would be much appreciated

My System SpecsSystem Spec
08 Apr 2013   #2

Windows 7 Home Premium 32 bit

Hi MackTheKnife,

Welcome onboard.

I am just shooting in the dark.

Click on Start type cmd in the Search field and press Enter

Click on cmd.exe to open the Command Window.

Enter this command.

attrib -h -r -s /s /d g:\*.* (replace g with the actual pen drive letter)

(You can copy and paste the above command but remember to put in the correct drive letter.)

Now press "Enter".

Now check for your files in your pen drive.

Good Luck.
My System SpecsSystem Spec
09 Apr 2013   #3

Windows 7 Home Premium SP1

Hi Jumanji

Thanks for your suggestion. I'm not sure what that command was meant to do, I pasted it into a DOS command line as you suggested. It ran for quite a few minutes and then just went back to the prompt without displaying anything, and I see no change on the thumb drive. The files I copied from home are still not there, and the files I copied from work are there.
I tried the command both at home and at work.
My System SpecsSystem Spec

10 Apr 2013   #4

Windows 7 Home Premium 32 bit

hmmm..... that command only unhides all files if those are hidden. And it looks like you have nothing hidden.

Are you sure you bought a genuine 64GB pendrive and not a cheapie fake pendrive?

You may check your pen drive with H2testw Test for Fake USB Flash Drives – H2testw | Portable USB Applications

h2testw – Gold standard in detecting fake capacity flash | Fighting flash fraud on Ebay

It is preferred to copy all the files in your pen drive elsewhere, format it and then run it to write and verify. Read the Readme file.
My System SpecsSystem Spec
13 Apr 2013   #5

Windows 7 Home Premium SP1

I ran the USB tester that you recommended, and here are the results:

Warning: Only 63992 of 63993 MByte tested.
The media is likely to be defective.
7.6 GByte OK (16108992 sectors)
54.8 GByte DATA LOST (114946624 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
54.8 GByte corrupted (114946624 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x00000001eb9b8000
Expected: 0x00000001eb9b8000
Found: 0x0000000000000000
H2testw version 1.3
Writing speed: 12.9 MByte/s
Reading speed: 9.19 MByte/s
H2testw v1.4

I ran this on 2 different computers, to be certain. I'm guessing this means that it is a fake and the actual capacity is 7Gb not 64
My System SpecsSystem Spec
13 Apr 2013   #6

Windows 7 Home Premium 32 bit

Without doubt it is a fake pen drive. Please return it to the vendor and get the refund. Buy genuine branded pen drive from a reputable vendor.

You may mark the thread as solved.
My System SpecsSystem Spec
13 Apr 2013   #7

Windows 7 Home Premium SP1

Thank you for helping me with this.
My System SpecsSystem Spec
13 Apr 2013   #8

Windows 7 Home Premium 32 bit

You are welcome.

Note: I would not trust even that 8GB, for all fake pen drives are made with manufacturer-rejected components.
My System SpecsSystem Spec
13 Apr 2013   #9

Windows 7 Home Premium SP1

Thanks for the advice. I bought it on eBay from a Chinese guy who now won't even respond to my email.I guess I can just chalk it up as a lesson to myself
You've been very responsive and helpful and I thank you for taking the time.
My System SpecsSystem Spec
13 Apr 2013   #10

Windows 7 Home Premium 32 bit

My pleasure.
My System SpecsSystem Spec

 USB Thumb drive not working properly

Thread Tools

Similar help and support threads
Thread Forum
Thumb Drive
Are there any tools to repair thumb drives? I have a dive that will not format after I pulled it out without ejecting it.
Hardware & Devices
Backups on thumb drive?
Is it possible to make a backup for my computer on a thumb drive, and have it work just like the W7 cd I have where it gives me a fresh install if I want to wipe out viruses and such that have been a problem? I actually want to do this for a vista computer. I am planning to swicth from an HDD to...
Backup and Restore
Thumb drive not recognized
I have both a desktop and a laptop running Win7. I use a password manager on my desktop and decided to copy the password manager to a thumb drive to use on the laptop. I copied the folder to the thumb drive and checked it's operation on the desktop and it worked fine. I plugged the thumb drive into...
Hardware & Devices
Cannot rename USB thumb-drive
I have a 8GB thumb drive, age unknown. In WinExp, Name:= Removable Disk In drive Properties, Name:= <empty, no name, an empty string> When I try to rename the drive "PKT2012" in either or the new name refuses to "stick" The "Properties" dialog "Name" field is always empty. Is the...
Hardware & Devices
Help may have messed up thumb drive.
FIXED Ok i have a 8g usb thumb drive. Tried the chrom os install on it and couldn't get it to load on a pc. So just decided to formate thumb drive AND NOW it only has 1 gig. I tried the Devise management and all i see it Devise has unallacated space...... Help....
General Discussion
Bootable Thumb Drive
I'm making a bootable thumb drive with all the best recovery and testing tools I can think of. Problem is I cant think of any other tools to put on it. So far I have Hiren's boot cd, ubcd, ubcd4win, XP install disk image (dunno if the xp works yet), clonezilla, ubuntu, and orphcrack. Anyone...
Performance & Maintenance

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 00:49.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App