Office Settings & Configuration

Fix Unevenly Shaded Excel Gridlines on One Computer

Maira Mehtab Oct 1, 2026 868 views

Question details

The user is experiencing a display issue where Excel gridlines render with uneven shading across both new and existing workbooks on a specific computer.

How to Fix Unevenly Shaded Excel Gridlines on One Computer

Product: Microsoft Excel
Device & OS: Windows
Scenario: Viewing, editing, or creating spreadsheets in the Excel desktop application.
Observed behavior: Gridlines appear distorted or unevenly shaded instead of rendering as clean, uniform lines, affecting visual clarity.

Before you start

Before modifying system configurations, ensure you have saved all open workbooks, completely closed Microsoft Excel, and created a backup of your Windows Registry to prevent unintended system issues.

Solution 1Recommended

Reset the Microsoft Office Registry Key

Renaming the Office registry key forces Excel to recreate its default configurations, resolving display glitches caused by corrupted local settings.

This method clears personalized application settings that may be corrupted. Your actual Excel workbooks, data, and Microsoft 365 subscription will not be affected.

Close All Office Applications

Make sure Microsoft Excel, Word, and any other Office desktop applications are completely closed.

Open Registry Editor

Press the Windows Key + R on your keyboard, type 'regedit' in the Run dialog box, and press Enter to launch the Windows Registry Editor.

Navigate to the Office Directory

In the left pane, navigate to the following path: HKEY_CURRENT_USER\Software\Microsoft\Office.

Rename the Registry Key

Right-click on the 'Office' folder, select 'Rename' from the context menu, and change the name to 'Office.old'. Press Enter to save.

Restart Microsoft Excel

Close the Registry Editor and reopen Excel. The application will generate a fresh registry key with default display settings.

Export a Registry Backup: Before renaming, it is highly recommended to right-click the 'Office' folder and select 'Export' to save a backup copy of your current configurations to your desktop.

Solution 2

Test Using Excel for the Web

Checking your file in Excel for the Web helps determine if the gridline shading issue is specific to your local desktop installation or embedded in the file itself.

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Frequently Asked Questions

Why do my Excel gridlines look strange on only one computer?

This usually happens because local user preferences, display scaling settings, or the Windows Registry configurations specific to that machine have become corrupted. Resetting the registry key clears these problematic local settings.

Will renaming the Office registry key delete my files or macros?

No, renaming the Office registry key only resets application preferences (like default views and display settings). Your Excel workbooks, data, macros, and add-ins remain safely stored on your drive.

Could outdated graphics drivers cause uneven gridlines?

Yes. Display anomalies in Microsoft Office are often linked to outdated or incompatible graphics drivers. Updating your GPU drivers or disabling Hardware Graphics Acceleration in Excel's Advanced Options can also resolve shading issues.

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