Hard Drive keeps deleting new files, and ask for formatting after I deleted Time Machine BackUp

Hi everyone,

Recently I deleted the Time Machine back up that I had in my external hard drive, to format it for both Mac and Windows, and after I've used the HD twice (plugged it twice and unplug it) it keeps asking to be formatted (Both on my Mac and on my DELL), as if it is a new HD. Has anyone encountered this?

I'll explained in more detailed what happened, and what the issue I think is related to. But I haven't been able to solve it.

I have a LaCie Rugged Thunderbolt HD of 1 TB. I had both old files in it and a Time Machine (TM) back up for my Mac Book Pro 2011. Recently I passed my old files (not in TM) to another Hard Drive, and decided to delete the Time Machine Back Up, to make space in my LaCie HD, and to be able to format it with an exFAT format so that I can open my files both on Windows and Apple. Till then my Lacie only opened on a Mac.

I deleted the Time Machine back up by first deleting the back ups from inside TM and then by moving the folder to the trashcan.

1) I formated the LaCie initially with a FAT format, only to realize that I couldn't pass big files like iPhoto libraries. 2) So I formated it again with the exFAT format. I found in both occasions 3 folders and a file that didn't delete: .fseventsd, .Spotlight-V100, .Trashes and ._.Trashes, whenever I opened the HD in my DELL. 3) I tried deleting them manually, I was able to work on my HD two times again , before the computers (Mac and DELL) didn't recognize it anymore and asked the HD be formatted.

4)I looked the files up. Seemed related to TM or to Apple, so I decided to put them in an folder so they wouldn't mess up the HD nor bothered me. Two times after I was using the HD the folders appeared again outside of the folder I had put them. As if they had duplicated, or just being created there.

5) So I decided to leave them there and work my files in other folders. Still the Hard Drive let me work for two times and when I tried opening it a third time, it asked to be formatted again. As if new.

6) I scaned it to see if it has a virus with Bitdefender Antivirus. Says it has no threads, and 4 files. So the 3 folders and the other file are still there. I'm about to check it with Malware Bytes software. But I'm running out of ideas of what I can do to use my Hard Drive.

The Hard Drive had not presented any issues before. I've wondered if deleting a TM back up just by putting it in the trash can, left some files or folders that worked with it and thus it created some loop that crashes the HD.

Has any one encountered this? And if so, did you solve it? How?

Thank you,

Angela

These are the folders it shows: