How to Fix Excel Printer Setup Prompts and Dark Worksheet Tabs
Question details
The user needs to stop an Excel workbook from repeatedly opening a printer setup dialog and revert the dark gray worksheet tabs to their standard appearance.

- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- Editing a workbook when unexpected printing dialogues and interface color changes occur.
- Observed behavior
- Excel repeatedly opens the printer setup dialog on its own and displays dark gray worksheet tabs instead of the standard colors.
Verify that your computer has administrator privileges, as you may need to update system hardware drivers. Additionally, check if the printer setup prompts occur in all Excel files or just one specific workbook.
Set a Default Virtual Printer and Update Drivers
Resolve recurring printer setup prompts by configuring a reliable virtual printer as the system default.
Excel constantly checks the default printer to determine page layouts. If a physical printer is disconnected or has faulty drivers, Excel may repeatedly prompt you to set up a printer.
Press the Windows key, type 'Printers & scanners', and select the system setting from the search results.
Locate 'Microsoft Print to PDF' (or another virtual printer) in the list, click on it, and select 'Set as default'.
If you need to use a physical printer, open 'Device Manager', expand the 'Print queues' section, right-click your printer, and select 'Update driver'.

Adjust Microsoft Office Theme Settings
Fix the dark gray worksheet tabs by modifying the overall Office appearance theme.
Experience Hassle-Free Spreadsheets with WPS Office
If you are tired of unexpected printer prompts and theme glitches in Microsoft Excel, consider switching to WPS Office. It is a free, lightweight, and highly compatible alternative that offers a smooth and familiar spreadsheet experience without the heavy resource usage.
- 1. Download WPS Office: Visit the official website to download and install WPS Office for free.
- 2. Open WPS Spreadsheets: Launch the application and open your existing Excel workbooks perfectly intact.
- 3. Customize and Print: Enjoy stable printing connections and easily toggle interface themes via the settings menu.

Frequently Asked Questions
Why does Excel automatically open the printer setup dialog?
This usually happens when Excel struggles to communicate with your current default printer due to outdated drivers or a disconnected device. Setting a virtual printer like 'Microsoft Print to PDF' as the default establishes a stable connection and stops the prompts.
Does changing the Office Theme affect my printed documents?
No, the Office Theme only changes the appearance of the application's user interface, such as the ribbon and worksheet tabs. It does not alter the background color or formatting of your printed spreadsheets.
How do I change the worksheet tab colors individually?
If you want to change the color of a specific worksheet tab rather than the whole theme, right-click the tab at the bottom of the screen, select 'Tab Color', and choose your preferred color from the palette.




