Set the Home window to open full screen

I appreciate you for getting back, @freedml. I'm stepping into the thread to share some additional troubleshooting steps to set your homepage to full screen.
 

First, change your default settings in QuickBooks. It's recommended especially when you have a high-resolution monitor.
 

Here's how:

1. Close QuickBooks Desktop.
2. Open the Windows Start menu.
3. Type "QuickBooks" into the search. Then right-click the QuickBooks icon and select Open file location.
4. In the folder, right-click the QuickBooks.exe file and select Properties.
5. Go to the Compatibility tab.
6. Select the Disable display scaling on high DPI settings checkbox. You can also select Change high DPI settings and then Override high DPI scaling behavior.
7. Hit Apply, then OK.

Then, update the view preferences from the Edit menu.

1. Click on Preferences from the Edit tab.
2. Select Desktop View at the left pane, then go to the My Preferences section.
3. Switch the radio button to One view.
4. Hit OK to save the changes.

Once done, reopen QuickBooks to view the Homepage. If everything looks good, you're good to go.

If you're getting the same result, you can manually maximize the page by clicking on the Maximize button.

On the other hand, you may also update your Windows display settings following the guidelines from this article: Fix screen issues in QuickBooks Desktop.

Once the screen is corrected, you're now ready to track your business transactions in QuickBooks seamlessly. You can check out the topics from this link as your reference: Related resources for QuickBooks Desktop.

If you have any other follow-up questions about homepage screen, let me know by adding a comment below. I'm always here to help. Have a good one!