Hello @LynJa,
There is no "simplepass password" the, password you probably need to log in would be for Windows or your user account.
Go through this document
https://support.hp.com/us-en/document/c04648973
Hope this helps, for any further queries reply to the post and feel free to join us again !!
**Click the White Thumbs Up Button on the right to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
GBL84
I am not an HP Employee