How to Fix Laptop Freezes When Running Excel on Battery Power
Question details
The user experiences complete laptop freezing when operating on battery power, particularly when opening or running Microsoft Excel, though it sometimes occurs even when Excel is closed.

- Product
- Microsoft Excel
- Device & OS
- Windows
- Scenario
- Using a laptop disconnected from the AC adapter, relying solely on battery power.
- Observed behavior
- The system freezes completely and becomes unresponsive. The issue is temporarily avoided by running Excel in Safe Mode, but persists under normal conditions and occasionally when Excel is entirely closed.
Ensure your laptop is plugged into the AC adapter while troubleshooting to prevent sudden shutdowns, and save any ongoing work before updating system drivers.
Start Excel in Safe Mode and Disable Problematic Add-ins
Use Safe Mode to determine if third-party Excel add-ins are causing the application and system to freeze.
Starting Excel in Safe Mode bypasses features and settings such as alternative startup locations, changed toolbars, and most importantly, COM add-ins. If the freezing stops in Safe Mode, an add-in is likely the culprit.
Press the Windows key + R to open the Run dialog box. Type 'excel /safe' and press Enter to launch Microsoft Excel in Safe Mode.
Click on 'File' in the top-left corner, select 'Options' at the bottom, and click on 'Add-ins' in the left pane of the Excel Options window.
At the bottom of the window, ensure the 'Manage' dropdown is set to 'COM Add-ins' and click 'Go'. Uncheck all the add-ins in the list and click 'OK'.
Close Excel and reopen it normally while on battery power to see if the freezing issue is resolved.

Update System Drivers and Power Settings
Adjust Windows power management configurations and update critical hardware drivers to prevent power-saving states from crashing your system.
Try WPS Office for a Stable, Lightweight Experience
If Microsoft Excel continues to freeze your laptop and drain your battery, consider switching to WPS Office. It is a highly optimized, lightweight alternative that consumes fewer system resources and helps extend battery life while remaining fully compatible with your existing files.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button to get the lightweight installer.
- 2. Install WPS Office: Run the downloaded file and follow the quick on-screen instructions to install the suite on your laptop.
- 3. Open Your Spreadsheets: Launch WPS Spreadsheets and open your existing Excel files directly—no format conversion is necessary.

Frequently Asked Questions
Why does my laptop only freeze when unplugged from the charger?
When running on battery power, laptops often switch to lower power states to conserve energy. This can cause resource-heavy applications like Excel, or hardware with outdated drivers, to crash or freeze due to improper power throttling.
Will reinstalling Microsoft Office fix the freezing issue?
Reinstalling Office might not resolve the issue if the root cause is related to hardware components, power-management settings, or outdated system drivers. However, it can help if the freezing is solely caused by corrupted application files.
How can I tell if the laptop battery itself is failing?
If your system shuts down unexpectedly, the battery drains rapidly, fails to hold a charge, or freezes across multiple applications (even when Excel is closed) after disconnecting the AC adapter, you likely need a physical battery or motherboard inspection.




