Hey there, amyt71.

I'd be glad to help you with generating a W-2 for a terminated employee in QuickBooks Desktop. Here's how:
 

1. Click Employees at the top menu bar, select Payroll Tax Forms & W-2s, and choose Process Payroll Forms.
   
2. From the File Forms tab, scroll down and select Annual Form W-2/W-3 - Wage and Tax Statement/ Transmittal.
3. Select Create Form and choose the terminated employee to file.
4. Enter the year, then select OK.
5. Select all or individual employees to print.
6. Hit Review/Edit to review each W-2. Reviewed W-2s have a checkmark in the Reviewed column.

In case you need help with changing your employee's information, you can check out the following articles. These will provide you with steps in modifying as well as purchasing their W-2s:

Print your W-2 and W-3 forms.

Set up employees and payroll taxes in a new state.

I'll be right here if there's anything else you need. You can always count on me. Have a nice day!