Office Apps Freezing

Fix Spoolsv.exe Causing Microsoft Word to Freeze When Copying Equations

Adam Davis Oct 12, 2026 869 views

Question details

The user needs to resolve an issue where copying equations in Word causes the application to freeze due to high CPU usage from the Windows Print Spooler.

How to Fix Microsoft Word Freezing When Copying Equations Due to Spoolsv.exe

Product: Microsoft Word
Device & OS: Windows
Scenario: Copying large mathematical equations within a Microsoft Word document.
Observed behavior: Microsoft Word freezes and becomes unresponsive, accompanied by unusually high CPU usage from the spoolsv.exe (Windows Print Spooler) process.

Before you start

Save your current work if possible. Do not attempt to permanently delete spoolsv.exe, as it is a critical system service required for all Windows printing functions.

Solution 1Recommended

Disable Clipboard History and Test a New User Profile

Isolate the problem by turning off the Windows clipboard history feature and testing Word on a fresh user account to rule out profile corruption.

The Windows clipboard history feature can sometimes conflict with complex clipboard data like large Word equations. Disabling it or testing on a new user profile can help identify the root cause.

Disable Clipboard History

Press the Windows key + I to open Settings. Navigate to System > Clipboard, and toggle the switch for 'Clipboard history' to the Off position.

Create a new User Profile

If the freeze persists, go to Settings > Accounts > Family & other users (or Other users). Click 'Add account' to create a new local Windows profile.

Test copying in Word

Sign in to the newly created Windows profile, open Microsoft Word, and attempt to copy a large equation to see if the spoolsv.exe CPU spike still occurs.

Temporary unfreeze: If Word is currently frozen, you can open Task Manager (Ctrl + Shift + Esc) and end the spoolsv.exe process to unfreeze the app, but note that printing will be unavailable until the service restarts.

Solution 2

Submit a Support Request to Microsoft

Contact Microsoft Support so they can collect diagnostic logs while Word is in a frozen state.

Free Microsoft Office alternative

Try WPS Office for Seamless Equation Editing

If Microsoft Word continues to freeze and disrupt your workflow, consider switching to WPS Office. It provides a lightweight, free, and highly compatible word processing experience that handles complex equations smoothly without conflicting with your system's print spooler.

1. Download and Install: Download WPS Office Free from the official website and run the installer.
2. Open Your Document: Launch WPS Writer and open your existing Word document containing the equations.
3. Edit Without Freezing: Use the Equation tool under the Insert tab to smoothly edit, copy, and paste formulas.

Fully compatible with Microsoft Word formats (.docx, .doc).Lightweight installation that uses minimal system resources.Built-in equation editor for uninterrupted mathematical typing.Free to use with a familiar, easy-to-navigate user interface.

microsoft office alternative - wps office

Frequently Asked Questions

What is spoolsv.exe and why is it affecting Microsoft Word?

Spoolsv.exe is the Windows Print Spooler service responsible for managing print jobs. Word interacts with background printer services to calculate page layouts and format complex objects like equations. A software conflict during this process can cause high CPU usage and freezing.

Should I delete spoolsv.exe to permanently fix the Word freeze?

No, you should never delete spoolsv.exe. It is a core Windows system component required for printing documents. Deleting it will break your ability to print to both physical and virtual printers.

Does turning off Windows clipboard history always fix this issue?

Disabling clipboard history resolves the issue for many users, as the feature sometimes struggles to process the complex formatting of large equations copied from Word. However, if the issue is tied to a corrupted user profile, further troubleshooting is required.

Can I temporarily stop the print spooler to unfreeze Word?

Yes. If Word is completely frozen, you can open Task Manager (Ctrl + Shift + Esc), locate 'Spooler SubSystem App' or 'spoolsv.exe', and select 'End task'. This will unfreeze Word, but you will need to restart your computer or the Print Spooler service to print again.

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