Office Settings & Configuration

How to Fix Excel Cells Not Highlighted When Selected

Partner Editor Oct 7, 2026 871 views

Question details

The user is unable to see a visual highlight border when selecting a single cell, making it difficult to identify the active cell.

How to Fix Excel Cells That Are Not Highlighted When Selected

Product: Microsoft Excel
Device & OS: not provided
Scenario: Navigating and selecting individual cells in an active worksheet.
Observed behavior: Selecting a single cell does not display the expected visual highlight border, though selecting multiple cells displays normally. The active cell can only be deduced by looking at the row and column headers.

Before you start

Before attempting any settings changes, open a completely new, blank workbook to determine if the visual glitch is isolated to your current file or if it affects all Excel documents system-wide.

Solution 1Recommended

Run Excel in Safe Mode and Disable Add-ins

Starting Excel in Safe Mode temporarily bypasses all add-ins, helping you identify if a third-party plugin is causing the display glitch.

COM add-ins and custom Excel macros can sometimes interfere with the software's user interface rendering. Safe mode provides a clean environment to test the basic functionality.

Launch Safe Mode

Press and hold the 'Ctrl' key on your keyboard while clicking the Excel shortcut to open it. Alternatively, press Windows + R, type 'excel /safe', and press Enter.

Test Cell Selection

Click on any single cell in the blank workbook. If the green highlight border appears normally, an add-in is likely causing the issue.

Disable Add-ins

Go to File > Options > Add-ins. In the 'Manage' drop-down list at the bottom, select 'COM Add-ins' and click 'Go'. Uncheck all add-ins and click OK, then restart Excel normally to see if the issue is resolved.

Isolating the culprit: If disabling all add-ins fixes the issue, turn them back on one by one to find the specific add-in responsible for the missing highlights.

Solution 2

Adjust Excel Display Settings and Disable Hardware Acceleration

Disabling hardware graphics acceleration forces Excel to rely on software rendering, which can fix UI drawing errors like missing cell borders.

Solution 3

Repair the Microsoft Office Installation

If Excel's core files are corrupted, running the built-in Microsoft Office Repair tool can restore missing visual elements and default behaviors.

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Frequently Asked Questions

Why is only a single cell missing its highlight while multiple selected cells highlight perfectly?

This specific discrepancy is typically a display rendering glitch. It happens when the computer's graphics card or Excel's hardware acceleration struggles to draw the single-cell active border, whereas a multi-cell selection triggers a different rendering process.

Can I change the default highlight color for selected cells in Excel?

Microsoft Excel does not offer a built-in setting to change the default green selection border color. Altering this requires modifying Windows High Contrast settings or using custom VBA macro scripts to simulate a different highlight color.

Will updating my Windows graphics drivers fix Excel display issues?

Yes. Outdated or corrupted graphics drivers frequently cause user interface issues in Office applications. Updating your graphics drivers through Windows Update or your manufacturer's website can often restore missing highlights and improve general software performance.

Could a custom theme be causing the cell highlight to disappear?

Yes, some custom Windows display themes or third-party visual customization tools can interfere with how Microsoft Office apps render colors. Reverting to the default Windows theme can help rule out this possibility.

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