4 files have been corrupted and can't be erased

[abwfl]

All of sudden I get this error when I try to back up:

11:07:16 AM Error Cannot move file
"H:\FFS onHF\ThundB\App\thunderbird\ldap60.35a0.ffs_tmp" to
"H:\FFS onHF\ThundB\App\thunderbird\ldap60.dll".
Error Code 183: Cannot create a file when that file already exists. [MoveFileEx]
11:07:17 AM Error Cannot move file
"H:\FFS onHF\ThundB\App\thunderbird\mozMapi32.a50c.ffs_tmp" to
"H:\FFS onHF\ThundB\App\thunderbird\mozMapi32.dll".
Error Code 183: Cannot create a file when that file already exists. [MoveFileEx]
11:07:17 AM Error Cannot move file
"H:\FFS onHF\ThundB\App\thunderbird\nssckbi.6580.ffs_tmp" to
"H:\FFS onHF\ThundB\App\thunderbird\nssckbi.dll".
Error Code 183: Cannot create a file when that file already exists. [MoveFileEx]
11:07:38 AM Error Cannot move file
"H:\FFS onHF\FrmFL4NY\back\Aw2\My Documents\iou.6415.ffs_tmp" to
"H:\FFS onHF\FrmFL4NY\back\Aw2\My Documents\iou.123".
Error Code 183: Cannot create a file when that file already exists. [MoveFileEx]

I have gone into the directories and tried to erase some of those corrupted files directly, but I get "an unexpected error is keeping you from deleting that file". The files show 0 bytes in properties. I'm using Windows 10.

What can I do?

Thanks,
Alan

[Radish]

Well, if you are sure you want to delete the files, then give IObit Unlocker (Portable) a try. See if that helps. To use it just download the installer. 'Install' to a folder of your choice. Then launch it via the file titled IObitUnlockerPortable.exe inside the folder you 'installed' to.

Note that this is a portable so nothing actually gets 'installed' to your system in a conventional way. So if you try it and it doesn't work then just delete the folder you 'installed' to and it is all gone.

[abwfl]

Thank you very much, but unfortunately it didn't work. Unlocker said the file wasn't locked.
Note: When I try to delete one of the problem files I get error code 0x80070570 the directory is corrupted and unreadable. These corrupted files are all in the FFS saved folder on a usb drive. Perhaps I should just delete the whole thing and start over? If so, any tips or warnings?

[Radish]

No tips or warnings I'm afraid, not an area of expertise on my part. If it was me I would reformat the drive and try again. If the same kind of thing was happening then I'd guess the drive was flaky and get a new one. That said, your guess would be as good as mine.

[abwfl]

Good News: Chkdsk solved the problem.

[Radish]

Yes, I just thought of that myself and was going to post in. Glad it got solved!