Personal hard drive locked with Dell Data Protection EMS

Hello Dell Community,

I looking for your help in accessing to my personal data. 

Quick story. I used to work for this company that went out of business 2 years ago.

Back then I used my personal hard drive to transfer data and add my personal content. The IT admin did install the Data Dell Encryption to protect the HD. Few days prior, I wanted to check some old files and put the wrong password (forgot) I can't access to my hard drive anymore. 

The screen shows:

"Authentication failed. Please contact your system adminnistrator.

Volume LA-PUBLIC (E:/)

Shield by: (Company out of business)

Recovery Key ID: xxxxxxxxxxxx

Sheild ID: xxxx-xxxx-xxxx-xxxx

Endpoint Code: xxxx-xxxx-xXxx-xxxx

Access code: (to fill)

OK / Cancel

I tried to plug it into a other laptop but the password prompt doesn't show up. It tried everything I without success -  hope you can point me out the the right direction!

Thank you!

Charles