I'm here to walk you through a few troubleshooting steps that will help resolve your issue.
Accessing the Employee Center is affected due to the recent update from Windows 10 v1809, v1903, and v1909. You'll need to manually download the update to get this fix by going to the Start menu. Proceed to Settings, click Windows Update, then click “Check for Updates”.
Once updated to the latest Windows version, you can open QuickBooks, and access the Employee Center.
If the same issue persists, I suggest chatting with our QuickBooks Desktop Payroll Team. This way, they can further investigate what's causing this behavior.
Also, I recommend updating your tax table every time you pay employees. It will keep the most current and accurate rates and calculations for supported state and federal tax tables, payroll tax forms and e-file and pay options.
Let me know how everything turns out by clicking the Reply button below. I'm always right here to help.