Hard Drive Will Not Safely Remove Or Eject

Having trouble safely removing that external USB drive

Getting this message

Try installing

Lockhunter : http://lockhunter.com/downloadnow.htm
or
Unlocker : http://filehippo.com/download_unlocker/


With Unlocker it will come as malware so be careful you need to be careful when installing
When you get up to "Delta toolbar" make sure you tick advanced then untick Install Toolbar, tick next, if you are not careful this could be dangerous, stick to Lockhunter.

To use these programs right click on the drive or program you want to unlock, click on What Is Locking  This Folder? or Unlocker.

If you still have a stubborn drive that will not eject, then the safest and easiest way is to reboot your PC,
Download Process explorer from http://download.sysinternals.com/files/SysinternalsSuite.zip
Unzip, Install, run as administrator (important), go to find then Find Handler or DLL, in the search type \device\harddisk or drive letter Eg d:\ press search

In my case it was AVG, go back to process explorer, go to Handle then Close Handle.
Try to safely remove the drive.

Other tools :  DriveLetterView  : http://nirsoft.net/utils/driveletterview.zip