External hardrive turn off

Hi Dub

When it says that ‘cannot be stopped right now’ means that the hard drive is in use and for the safety of operations the computer will never stop the hard drive and let it be ejected. So before ejecting close all the programs and all the files and folders on the external hard drive. Some time it also happens that external hard drive contains malware or virus and they are active (running) in the back ground in this case your computer will not let you stop the hard drive because for computer the hard drive is in use.

Try to clean your hard drive it will fix your problem.

Important thing about losing your data.

When the external hard drive is properly stopped and ejected the computer  rechecks that all the data transferred from the hard drive or to the hard drive is completed or not, when checks are ok then computer  put the heads of hard drive in parking position.so the platters of the hard drive will be safe from getting damaged by accidental shock (touching heads on the platters and creating bad sectors) so if the hard drive is not properly ejected the heads are not parked in this case a small shock can damage your hard drive.