External Hard Drive not safely removable

Computer0304 said:

And I did try that essenbe. Maybe I should try using sfc /scannow and let Windows check if there is any corrupted DLLs.

And its safely eject device not letting me eject it. But I don't get why it's happening on that specific external hdd on that specific usb port on the specific admin user.

essenbe said:

You can try the SFC /scannow, it's not going to hurt anything and could help. But, do not remove the drive while using it. Until you can safely eject it, be sure to shut down the computer before unplugging it. Unplugging it while using it will cause file corruption. Sometimes, if you have ever removed it without safely ejecting can cause the problem you are experiencing.

The hard drive runs on usb power. So as long as I shut down correctly, I'm fine, right?
Also, I have another question.
Does bad sectors spread while the hard drive is off? Because recently my computer frose and the only thing I could do was move my cursor. The read/write light was on, so I am worried that it might have caused a bad sector on the system hdd. Also, could sfc /scannow cause problems if I'm using the computer while its running?

essenbe said:

SFC will not cause any problems at all, using the computer or not. It simply scans and attempts to repair system files. It is possible that it may be better if you don't use the computer while running it, but I've never heard that. I do not see any way bad sectors could spread while the hard drive is off. However, you said it runs on USB power. If it is plugged in, it is on. Why not, plug it in and run check disk. Disk Check It will take quite a while to run it, so just let it run until completed.

Could something go wrong durning chkdsk and corrupt files? Also to fix problems, what argument do I have to use? I'm scared to lose anything on the drive when it's fixing bad sectors. And by spreading bad sectors, I mean hard bad sectors. Are hard bad sectors even fixable?

Is the drive the only place you have your photos? If so, don't do anything with it until you make a copy of them somewhere, such as another HDD (if you don't have one, then you need to get one if you care about your photos). Data is not backed up until it exists in two or more places (preferably, three or more places). If your photos exist on another drive, then you don't need to worry about working on the drive; you can always restore the photos from the other copy if you should lose them while working on the drive in question. Otherwise, you are at risk for losing all your photos. HDDs can fail without warning.

Lady Fitzgerald said:

Is the drive the only place you have your photos? If so, don't do anything with it until you make a copy of them somewhere, such as another HDD (if you don't have one, then you need to get one if you care about your photos). Data is not backed up until it exists in two or more places (preferably, three or more places). If your photos exist on another drive, then you don't need to worry about working on the drive; you can always restore the photos from the other copy if you should lose them while working on the drive in question. Otherwise, you are at risk for losing all your photos. HDDs can fail without warning.

Ok so thank you I will get another hard drive as soon as I could.

If you have "Everything" search engine installed you will find that is the culprit. Similar software may act the same.
Just exit "Everything" and "Safely Remove" will work.
Always try the simple solution first. So much damage is caused by advice that is not appropriate.