Office Settings & Configuration

Fix Excel Sorting and AutoFill Failing in Normal Mode

Anum MushtaqAnum Mushtaq Nov 3, 2026 868 views

Question details

Excel sorting and automatic fill features fail to operate in normal mode after an Office update, but continue to work correctly when Excel is launched in Safe Mode.

How to Fix Excel Sorting and AutoFill Failing in Normal Mode
Product
Microsoft Excel
Device & OS
Windows
Scenario
Attempting to sort columns or use the AutoFill drag handle after a recent Microsoft Office update.
Observed behavior
Sorting and AutoFill tools do not function or respond in standard mode, but they operate completely fine when Excel is opened in Safe Mode.
Before you start

Ensure your Microsoft Office application is completely closed and any unsaved work is backed up before adjusting system regional settings or disabling application add-ins.

Solution 1Recommended

Restore Windows Regional Settings

Resetting your Windows regional settings to the configuration used during the original Office installation often resolves conflicts triggered by recent software updates.

Office applications heavily rely on Windows localization settings for data formatting, list separators, and sorting behaviors. When an update alters these settings, core features like AutoFill and column sorting can suddenly stop functioning in normal mode.

1
Open Windows Control Panel

Click the Windows Start menu, type 'Control Panel' in the search bar, and press Enter to launch the application.

2
Navigate to Region Settings

Click on 'Clock and Region' (or 'Time & Language' depending on your Windows version), then select 'Region'.

3
Verify and Restore the Format

Under the 'Formats' tab, check the 'Format' dropdown. Ensure it matches the exact language and region that was active when you initially installed Microsoft Office.

4
Apply and Restart

Click 'Apply' and then 'OK'. Restart your computer and open Excel in normal mode to test the sorting and AutoFill features.

System Reboot Required: Restarting the computer ensures that Excel correctly fetches the refreshed regional data from the Windows registry.
Free Microsoft Office alternative

Switch to WPS Office for a Stable Spreadsheet Experience

If Microsoft Excel updates continuously disrupt your workflow and break core features like AutoFill and sorting, consider switching to WPS Office. It provides a lightweight, highly compatible, and free alternative to Microsoft Office, ensuring your spreadsheet tools work seamlessly without constant troubleshooting.

  1. 1. Download WPS Office: Visit the official WPS website to download and install the free office suite.
  2. 2. Open Your Spreadsheet: Launch WPS Spreadsheet and open your existing Microsoft Excel files directly.
  3. 3. Use AutoFill and Sorting: Enjoy stable and uninterrupted access to powerful data sorting and AutoFill tools right from the main toolbar.
Completely free and lightweight office suiteFully compatible with Microsoft Excel formats (.xlsx, .xls, .csv)Stable performance without frequent disruptive updatesFamiliar user interface for a seamless, zero-learning-curve transition
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Frequently Asked Questions

Why do sorting and AutoFill work in Safe Mode but not in normal mode?

Safe Mode forces Excel to bypass certain startup settings, add-ins, and extensions that might conflict with the software's core features. If a feature works perfectly in Safe Mode, the issue is almost always caused by an incompatible third-party add-in or a system configuration conflict in normal mode.

How do I launch Microsoft Excel in Safe Mode to test features?

You can launch Excel in Safe Mode by pressing and holding the Ctrl key while clicking the Excel application shortcut. Confirm that you want to start in Safe Mode when the prompt appears. Alternatively, press Windows + R, type 'excel /safe', and press Enter.

Can a Windows update change my regional settings and break Excel?

Yes, major system or Office updates can sometimes accidentally reset or alter Windows regional settings. Since Excel relies on these system configurations for data formatting, date recognition, and list separators, an incorrect region can suddenly disrupt data management tools like sorting and AutoFill.