Fix Excel Process Stays Running in Background After Closing
Question details
The user needs to resolve an issue where Excel does not fully terminate upon closing, causing add-ins like Power Pivot to fail to load when reopening the application.

- Product
- Microsoft Excel
- Device & OS
- Windows
- Scenario
- Closing Microsoft Excel and subsequently reopening it to use Power Pivot or COM add-ins within the same Windows session.
- Observed behavior
- Excel remains running indefinitely as a background process using under 300 MB of memory. This hanging process blocks COM add-ins and Power Pivot from loading normally when the user launches Excel again.
Ensure you have saved your current work and closed all visible Excel workbooks before attempting to force-close background processes or repair the application.
End the Hanging Excel Process via Task Manager
Use Task Manager to force quit the hidden Excel process, which allows add-ins to load normally on the next launch.
When Excel fails to close properly, a lingering background process keeps the application's environment locked. Manually ending this process clears the session and allows COM add-ins like Power Pivot to initialize correctly upon the next startup.
Right-click the Windows taskbar and select 'Task Manager', or press Ctrl + Shift + Esc on your keyboard.
Navigate to the 'Processes' or 'Details' tab. Scroll down to find 'Microsoft Excel' running in the background.
Right-click the Excel process and select 'End task'. Verify that it disappears from the list.
Open Microsoft Excel normally and check if your COM add-ins and Power Pivot load as expected.

Repair Your Microsoft 365 Installation
Run an online repair of Office to fix corrupted application files that may prevent Excel from shutting down completely.
Create a New Windows User Profile
Test Excel in a fresh user profile to determine if the issue is caused by account-specific permission errors or corrupted profile data.
Try WPS Office for a Lightweight, Error-Free Spreadsheet Experience
If Microsoft Excel continues to hang in the background and disrupts your workflow, consider switching to WPS Office. As a free, lightweight alternative, WPS Spreadsheet offers full format compatibility, a highly familiar user interface, and seamless migration without the heavy background processes.
- 1. Download the Installer: Visit the official WPS Office website and download the free installation package.
- 2. Install WPS Office: Run the installer and follow the quick setup wizard to install the suite on your Windows PC.
- 3. Open Your Spreadsheets: Right-click your existing Excel files, select 'Open with', and choose WPS Spreadsheet to continue working instantly.

Frequently Asked Questions
Why does Microsoft Excel stay open in the background after I close the window?
Excel may stay running in the background due to conflicting third-party COM add-ins, pending Office updates, a corrupted Windows user profile, or hidden macros failing to terminate. The process remains suspended in memory, which prevents fresh initializations.
Can disabling my other add-ins fix the Power Pivot loading issue?
Sometimes. However, if you disable all other add-ins and leave only Power Pivot enabled and the process still hangs, the issue is likely tied to the core Office installation or user profile permissions rather than a specific third-party add-in.
Will an offline Quick Repair solve the background process issue?
A Quick Repair often resolves minor registry issues, but if core execution files or background services are deeply corrupted, you will need to perform an Online Repair. Online Repair completely redownloads and replaces the problematic system files.
How do I safely test Excel without any add-ins running?
You can launch Excel in Safe Mode by holding down the 'Ctrl' key while clicking the Excel shortcut. This starts the application with all COM add-ins and startup files disabled, allowing you to isolate whether an add-in is causing the background hang.




