Unable safely remove usb drive

Hi all expert,

Recently I facing one problem once my usb drive (either pendrive or usb hardisk) attached to my computer it'll be unable to remove. I try to use unlocker but still unable to remove! Everytime I unlocked the drive the new application will attached and used the drive!

Please find the attached screenshoot for details and I hope you guys can help me to solve this annoying issue. Thanks!
Unlocker-Screenshot01.png
Unlocker-Screenshot02.png
weiman99Asked:
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johnb6767Commented:
Closing those apps from the Task Manager should release the open handles....

Are you copying files from this to a RDP Session?
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weiman99Author Commented:
Yes, sometime I'll use rdp to copy some contents.
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werafaCommented:
Safely remove hardware is only an issue if a file is cached, and not yet physically written to the disk.
I usualy just wait for the led to stop flashing, indicating that write operations have ceased, and pull the drive.  I have not ever found a problem

I do use the safely remove hardware if the copy operation is important - just in case
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weiman99Author Commented:
But can somebody tell me why my file keep used by the external drive no matter how I unlocked the drive it keep used by difference software or program.
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acl-puzzCommented:
Use this easy tool

http://quick.mixnmojo.com/files/USBDiskEjector1.1.2.zip

but make sure any related programs are closed
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johnb6767Commented:
Right click the Drive in Computer Management, and select Policies, and select "Optimize for Quick Removal".....
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weiman99Author Commented:
Hi acl-puzz, I've downloaded the software and try but no luck. If someone can tell me why my drive keep locked by unknown software this problem can be fix. Thanks!
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acl-puzzCommented:
try this setting in pix attached

whats on these drive? any shared data?

what if you logout from the currently logged in user and then try?
untitled.JPG
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weiman99Author Commented:
No share is just a normal pendrive, actually I tried all the pendrive or external hardrive will have the same problem. The default setting for the drive was set to Optimize for quick removal.
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acl-puzzCommented:
ok if still problem persists try scanning them with anti virus may be some hidden faulty program there associated with any running task

scan yours system drive and also this usb drive

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weiman99Author Commented:
Actually not only one usb drive not working but all the usb drive that plug into my system will not be able to unplug. I'll try to do full scan on my system.
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weiman99Author Commented:
Hi all,
I've found the problem. It's because of a virus call win32:expiro! my desktop affected hundred of it. So anyone know any utility can repair it? I mean clean not delete the whole exe file.
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acl-puzzCommented:
download hitmanpro and malwarebytes and scan  whole system
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weiman99Author Commented:
I've tried but seems cannot detected..
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weiman99Author Commented:
Anyone know any solution to clean the win32:expiro virus? Thanks!
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_Commented:
You can give this AVG tool a shot:
http://free.avg.com/us-en/225045

You could also try one of the AV boot cds:
http://www.zimbio.com/AntiVirus+Software/articles/455/FREE+Bootable+AntiVirus+Rescue+CDs+Download

kaspersky live cd
http://devbuilds.kaspersky-labs.com/devbuilds/RescueDisk/
Download the .ISO file, burn it to disk, and then boot from it. It should ask to download update files, and then scan the system.

Other options:

SUPERAntispyware (free for home use)
http://www.superantispyware.com/

Microsoft Security Essentials
http://www.microsoft.com/security_essentials/
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weiman99Author Commented:
Problem solve with Kaspersky Antivirus 2010.
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_Commented:
Glad to hear it.    : )
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