USB Drive will not eject.

i have a client that their USB drives will not eject from the server, it reports that the drives are busy and cannot be ejected.  Even after a fresh reboot.  I can't tell what is using the drives.
acmesupportAsked:
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ConUladhConnect With a Mentor Commented:
Try uninstalling the USB drive from device manager, unplug, replug and allow to reinstall.

Also use sysinternals processexplorer to determine whether there are any locks.
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
In Disk Management on the host right click on the root and set them to OFFLINE first. Wait until they stop blinking.

You can then eject them.

BTW, performance caching is disabled by default on Windows Server. Fast Swap is the default so those drives should be able to be swapped with no issues (depending on what is being done on them of course).

Philip
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acmesupportAuthor Commented:
Will I have to go though this all the time when I want to swap them?
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
What are they being used for?

Philip
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acmesupportAuthor Commented:
Nightly Backups, swapped out weekly.
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
What backup product? If not Windows Server Backup then check into the product's KBs to see if there are any issues with USB.

Philip
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acmesupportAuthor Commented:
It's Macrium Reflect.  I run this software on many servers with USB drives and this does not happen, in fact it was not happening on this server until recently.
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acmesupportAuthor Commented:
OK, great.  I uninstalled and reinstalled the drive.  No change there.  I downloaded process explorer and forgive me, its been a while since I used it, how do I tell what is using the USB drive?
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ConUladhCommented:
CTRL+F (or Find -> Handle or DLL), then enter the drive letter of the usb drive and search, e.g. F:\
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acmesupportAuthor Commented:
Very good, it was a Quckbooks Monitoring System.  Thanks!!
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