It's nice to see you again here in the Community, @BethatVIVO.

Your employee has the option to reset his password by clicking on the I forgot my user ID or password option upon logging in to Workforce. Please see the screenshot attached for reference:

From there, just let him follow the onscreen instructions to reset the password successfully.

To give you more details about how your employees can view their paychecks, please see this link: View your paychecks and W-2s online in QuickBooks Workforce.

I've also added here an article about emailing pay stubs in QuickBooks Desktop, in case you need it in the future. 

Let me know if you have any other questions. I'll be around to help. Have a great day!