Fix "Microsoft Word Has Run Into an Error" (Full Guide)
Why Microsoft Word Has Run Into an Error
I've seen this exact message on hundreds of machines over the years , you double-click a Word document, or you click the Word icon in your taskbar, and instead of your document opening, you get a cold, unhelpful dialog box that says something like "Microsoft Word has run into an error and needs to close" or "Microsoft Word stopped working" or just a spinning cursor that freezes everything. It's maddening, especially when you have a deadline.
Here's the honest truth: that error message tells you almost nothing useful. Microsoft's error dialogs in this situation are famously vague. They don't tell you which error, or why it happened, or what to actually do about it. That's exactly why you're reading this guide instead of already back to work.
So what's actually causing it? There are about eight common culprits, and I'll walk through each one:
- A corrupted installation file. One or more of Word's core program files got damaged, this happens after a bad Windows Update, a forced shutdown mid-install, or even a disk write error. Word tries to load, hits the broken file, and crashes.
- A broken or corrupted Normal.dotm template. This is the hidden template file that Word loads every single time it starts. If it gets corrupted, and it does, regularly, Word either crashes on launch or behaves wildly. This is one of the most common causes of "Microsoft Word has run into an error" on startup.
- A rogue add-in. Add-ins are small programs that plug into Word to add features, grammar checkers, citation tools, PDF converters. Any one of them can conflict with your current version of Word or with Windows and cause Word to crash on load. I've seen Grammarly, Mendeley, and even the built-in Adobe Acrobat add-in trigger this exact error.
- Corrupted user registry keys. Word stores settings in the Windows Registry under your user profile. If those keys get corrupted, again, usually after a bad update, Word crashes trying to read its own settings.
- Conflicting Windows updates. Some cumulative Windows 11 and Windows 10 updates have introduced DLL conflicts that break Office applications. Microsoft usually patches these within a week or two, but if you're in that window, it's painful.
- Insufficient permissions on the AppData folder. Word writes temporary files to
%AppData%\Microsoft\Word. If your user account has lost write permissions to that folder, sometimes caused by overzealous IT security policies, Word crashes when it tries to create those temp files. - Disk errors or bad sectors. If the drive partition where Office is installed has bad sectors, Windows can read the file partially, just enough to start loading Word before it hits the damaged part and crashes.
- An incompatible or damaged document itself. Sometimes Word isn't broken at all, it's one specific document that's corrupted. Word chokes trying to open it and throws the generic error.
The good news: almost every one of these is fixable without reinstalling Windows, without losing your documents, and without a technician. The steps below move from the fastest and least invasive fix to the more involved solutions. Start at the top and work down. Most people solve it at Step 1 or 2.
Browse all our Microsoft fix guides → if you're dealing with other Office or Windows errors at the same time, we've got you covered.
The Quick Fix, Try This First
Before we touch a single setting, try launching Word in Safe Mode. This is the fastest diagnostic step I always do first, and it takes about 20 seconds. Safe Mode starts Word with all add-ins disabled and with a clean temporary template, it bypasses most of the common crash causes in one shot.
Here's how to do it:
- Press Windows key + R on your keyboard. The Run dialog opens.
- Type exactly this:
winword /safeand press Enter. - Wait about 5–10 seconds. Word should open with a banner at the top that says "(Safe Mode)" in the title bar.
If Word opens in Safe Mode successfully, great news. Your Word installation isn't completely broken. The crash is almost certainly caused by an add-in or a corrupted Normal.dotm template. Jump to Step 3 (disabling add-ins) or Step 4 (resetting the template).
If Word crashes even in Safe Mode, the problem is deeper. Your Office installation has corrupted core files. Jump directly to Step 1 (running the Office Quick Repair). Don't waste time on the add-in steps.
One more fast thing to try: if the error only happens when opening a specific document (not when launching Word fresh from the Start menu), that document itself is likely corrupted, not Word. Try opening Word first, then using File > Open > Browse and navigating to the file. In the Open dialog, click the small dropdown arrow next to the Open button and choose "Open and Repair". Word will attempt to recover the document automatically.
The Office Quick Repair is Microsoft's built-in fix for corrupted installation files. It scans your Office installation, compares it to the known-good version, and replaces any damaged files, all without touching your documents or settings. It takes about 2–5 minutes and doesn't require an internet connection. This resolves the majority of "Microsoft Word has run into an error" cases caused by file corruption.
Here's exactly how to run it on Windows 10 or Windows 11:
- Press Windows key + I to open Settings.
- Go to Apps (Windows 11) or Apps > Apps & features (Windows 10).
- In the search bar, type Office. You're looking for an entry like Microsoft 365, Microsoft Office 365, or Office 2021, whatever version you have.
- Click on that entry, then click Modify (Windows 11: click the three-dot menu first, then Modify).
- A dialog asks: "How would you like to repair your Office programs?" Select Quick Repair and click Repair.
- Wait for it to finish. You'll see a progress bar. Don't open any Office apps during this time.
- When it completes, click Close and try opening Word normally.
If Word opens without error, you're done. The repair replaced whatever broken file was causing the crash. If it still throws the error, don't stop here. Run the Online Repair instead (Step 2), which is more thorough.
The Online Repair is a level up from the Quick Repair. Instead of just patching what it finds locally, it downloads a fresh copy of every Office file from Microsoft's servers and does a complete reinstall of the suite, while keeping all your documents, settings, and license intact. This fixes corruption that Quick Repair misses. You'll need a working internet connection and it takes 15–30 minutes depending on your speed.
Follow the same path as Step 1, but this time choose Online Repair instead of Quick Repair:
- Press Windows key + I > Apps.
- Find your Office entry and click Modify.
- Select Online Repair, then click Repair.
- A warning will appear that this requires an internet connection and will take longer. Click Repair to confirm.
- Office will close all running Office apps automatically. Let it. Don't try to keep Outlook or Excel open.
- The download and repair process runs. It may look like nothing is happening for the first few minutes, that's normal, it's downloading in the background.
- When complete, restart your PC before testing Word.
After the restart, launch Word from the Start menu. If it opens cleanly, perfect. If you're still seeing "Microsoft Word has run into an error" even after an Online Repair, then the installation isn't the problem. The issue is in your user profile: a corrupted add-in or a broken Normal.dotm template. Move to Step 3.
Note: Online Repair will also fix Microsoft Word crashing on startup issues caused by mismatched DLL versions after a Windows Update, it pulls the correct versions fresh from Microsoft.
Add-ins are the silent killers of Word stability. They're installed by other software, PDF tools, grammar checkers, reference managers, even antivirus programs, and they inject code directly into Word every time it starts. When an add-in is outdated, incompatible with your current Office build, or just badly written, it can crash Word instantly on launch.
The process here is to disable all add-ins, confirm Word loads cleanly, then re-enable them one at a time to identify which one is causing the "Microsoft Word has run into an error" message.
First, get into Word's add-in settings. If Word launches (even slowly), go to File > Options > Add-ins. At the bottom, where it says Manage, make sure it says COM Add-ins and click Go...
If Word won't open at all, use the Safe Mode method from the Quick Fix section first (winword /safe), then navigate to File > Options > Add-ins from Safe Mode.
- In the COM Add-ins dialog, you'll see a list of active add-ins with checkboxes.
- Uncheck every single one, clear all the boxes.
- Click OK, then close and reopen Word normally (not in Safe Mode).
- If Word opens cleanly, one of those add-ins was the culprit.
- Go back to File > Options > Add-ins > COM Add-ins > Go... and re-enable them one at a time, restarting Word each time, until the crash comes back. The last add-in you enabled is your problem.
Common offenders: Grammarly for Word, Adobe Acrobat PDFMaker, Mendeley Cite, Zotero, and Dragon NaturallySpeaking. Update the offending add-in from its developer's website or remove it entirely from Settings > Apps.
Also check Word Add-ins and XML Expansion Packs in the Manage dropdown, not just COM Add-ins. Some add-ins register under different categories.
The Normal.dotm file is Word's global template. Every document you create inherits its defaults from this file, fonts, margins, styles, macros, AutoCorrect entries. Word loads it every single time it starts. When it gets corrupted, Word either crashes immediately or shows the "has run into an error" message before a window even appears.
The fix is to delete (or rename) Normal.dotm so Word regenerates a fresh, clean version on next launch. You won't lose your documents, this file only stores templates and settings, not document content.
Here's where to find it and how to remove it safely:
- Press Windows key + R, type
%AppData%\Microsoft\Templates, and press Enter. This opens File Explorer directly in the Templates folder. - Look for a file called Normal.dotm. You might also see NormalEmail.dotm, leave that one alone for now.
- Right-click Normal.dotm and choose Rename. Change the name to Normal.dotm.old and press Enter. (We're renaming instead of deleting so you can restore it if needed.)
- Now launch Word normally. Word will detect that Normal.dotm is missing, generate a brand-new clean one, and open without error.
After Word opens, check that your default font, paragraph spacing, and basic styles look right. If some customizations are gone, that's expected, because they lived in the old (corrupted) template. You can re-set your preferences under Home > Font and Design > Paragraph Spacing, then save them as new defaults.
If you want to try recovering the old settings, you can open the renamed Normal.dotm.old file directly in Word and manually copy over macros or AutoText entries before deleting the old file.
If the previous steps haven't resolved the "Microsoft Word has run into an error" issue, the problem is almost certainly in your Windows Registry. Word stores a large block of per-user settings in the registry, toolbars, window positions, recent file history, file format preferences. When these keys become corrupted, Word crashes during initialization trying to read its own configuration.
Clearing these keys forces Word to rebuild them from scratch on next launch, same idea as resetting Normal.dotm, but for the registry. Important: only touch the Word-specific keys listed below. Do not delete other registry keys.
- Close Word completely. Check Task Manager (Ctrl+Shift+Esc) to make sure WINWORD.EXE is not running.
- Press Windows key + R, type
regedit, and press Enter. Accept the UAC prompt. - Navigate to this path in the left panel. The XX.0 part will vary by your Word version (16.0 = Word 2016, 2019, 2021, and Microsoft 365):
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Word - Right-click the Word folder and choose Export. Save the backup file somewhere safe (e.g., your Desktop). This is your safety net.
- Now right-click the Word folder again and choose Delete. Confirm the deletion.
- Close Registry Editor and launch Word.
Word will rebuild all its registry entries fresh on first launch. You'll go through the "Welcome to Word" first-run experience briefly, and you may need to re-set a few preferences (like your default save location), but your documents are completely unaffected.
If Word still crashes after this, also check and delete the Data subkey specifically, it sits at HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Word\Data and stores file path history that can get corrupted separately from the main Word key.
Advanced Troubleshooting
Read the Event Viewer Logs
When Word crashes, Windows writes a detailed error log to Event Viewer. Most people skip this, but it often tells you exactly which DLL or process caused the crash, information you can't get any other way. Press Windows key + X and choose Event Viewer. In the left panel, expand Windows Logs and click Application. Look for entries with a red X icon around the time Word crashed. The most relevant ones will have:
- Source: Application Error, these show the faulting module name (e.g.,
wwlib.dllmeans a core Word file issue; a third-party DLL name means an add-in or plugin) - Event ID 1000, the standard application crash event. The "Faulting module" field is your key clue.
- Event ID 1001, Windows Error Reporting follow-up, often with more detail
If the faulting module is something like mso.dll, wwlib.dll, or winword.exe itself, that confirms file corruption, and the Online Repair (Step 2) is the fix. If the faulting module is a third-party name like grmaddin.dll (Grammarly), PDFMOfficeAddin.dll (Adobe), or any other non-Microsoft DLL, you've identified your bad add-in.
Group Policy and Enterprise Environments
If you're on a company-managed machine joined to an Active Directory domain, your IT department may have deployed Group Policy Objects (GPOs) that affect Word. Overly restrictive GPOs, particularly those that block macros, restrict trusted locations, or control add-in loading, can cause Word to error out, especially if a required file path is blocked. Ask your IT team to run gpresult /h gpreport.html on your machine and review the Office-related policies applied to your user account.
Also check if Word is crashing for all users on the machine or just your account. Open a Command Prompt as a different local user and try launching Word. If Word works for other accounts, the problem is isolated to your user profile, focus on the Normal.dotm and registry fixes. If Word crashes for everyone, it's a system-level installation problem, the Online Repair or a full reinstall is the path.
Check Your AppData Folder Permissions
Open PowerShell as Administrator and run:
icacls "%AppData%\Microsoft\Word" /grant "%USERNAME%":FThis restores full write permissions to the Word temp folder. If the permissions were the issue, Word will open cleanly after running this command.
Run a Disk Check
If you have any reason to suspect disk issues (the PC is old, it's shut down improperly often, or you've seen other app crashes), check the drive for errors. Open Command Prompt as Administrator and run:
chkdsk C: /f /rYou'll be asked to schedule this for the next restart. Type Y and reboot. The check runs before Windows loads and can take 20–60 minutes, but it repairs file system errors and bad sectors that corrupt installed program files.
%LocalAppData%\CrashDumps, and identify issues that no generic guide can predict, including backend licensing errors and subscription validation failures that can cause Office apps to crash on launch.
Prevention & Best Practices
Once you've fixed the "Microsoft Word has run into an error" problem, you want to make sure it doesn't come back. A few habits will protect your Word installation from the most common causes of crashes and corruption.
Keep Office updated. Microsoft releases monthly patches for Microsoft 365 that fix known crash bugs, compatibility issues with Windows updates, and add-in conflicts. Don't defer these updates. Open any Office app, go to File > Account > Update Options > Update Now to check for and apply updates manually.
Be selective about add-ins. Every add-in you install is another potential point of failure. Only keep add-ins you actively use. If you install a grammar tool or reference manager, make sure it explicitly supports your current version of Microsoft 365 before installing. Check the developer's site, most reputable add-in makers list Office version compatibility clearly.
Shut down Word properly. Don't kill Word from Task Manager unless it's frozen. A proper close (File > Close, or the X button) gives Word time to write its settings cleanly to Normal.dotm and the registry. Force-killing it mid-write is one of the most common ways Normal.dotm gets corrupted.
Back up Normal.dotm periodically. If you've customized Word heavily, custom styles, macros, AutoText entries, copy Normal.dotm from %AppData%\Microsoft\Templates to a backup folder every few weeks. If it ever gets corrupted, you can restore your customizations instead of starting from scratch.
Don't install every free PDF printer you find. Many cheap or free PDF-to-Word tools install Office add-ins without clearly telling you. These third-party add-ins are a common cause of Word instability. If you need PDF functionality, use Microsoft's built-in Word-to-PDF export (File > Save As > PDF) or the Microsoft Print to PDF printer that comes with Windows 10 and 11.
- Run File > Account > Update Options > Update Now in Word monthly to stay current on Office patches
- Back up
%AppData%\Microsoft\Templates\Normal.dotmto a separate folder before installing any new add-in - After any major Windows Update, launch Word once before you need it for real work, so you catch crashes early, not mid-deadline
- Keep your add-in count under 5; uninstall any add-in you haven't used in the past month
Frequently Asked Questions
Why does Microsoft Word say it has run into an error every time I try to open it?
This usually means one of three things: a corrupted Office installation file, a broken Normal.dotm global template, or a problematic add-in that crashes Word during startup. Start by launching Word in Safe Mode (press Windows + R, type winword /safe, press Enter). If Word opens in Safe Mode, an add-in or template is the cause. If it crashes even in Safe Mode, run the Office Online Repair from Settings > Apps > Modify on your Office installation. In my experience, one of these two actions solves the problem in about 90% of cases.
Will repairing Office delete my documents?
No, the Office Quick Repair and Online Repair only touch Word's program files, not your personal documents. Your .docx files, .doc files, and any other documents stored on your PC are completely unaffected. The repair replaces corrupted installation files and resets some application settings, but it does not scan or modify anything in your Documents folder or OneDrive. That said, it's always a good habit to make sure your important documents are backed up to OneDrive or an external drive before running any system repair.
How do I fix Microsoft Word has run into an error on Windows 11 specifically?
Windows 11 users sometimes see this error after a cumulative update that introduces a DLL conflict with Office. The fastest fix on Windows 11 is to run the Office Online Repair (Settings > Apps > Microsoft 365 or Office > three-dot menu > Modify > Online Repair). Also check that your Windows 11 is fully updated, go to Settings > Windows Update > Check for Updates. Microsoft sometimes fixes Office-breaking Windows Update issues through a follow-up patch within a few days. If you updated Windows very recently and Word just started crashing, wait 24 hours and check for a new update before doing anything else.
Can a corrupted Word document crash Word itself, not just fail to open?
Yes, absolutely, and it happens more than people expect. A severely corrupted .docx file can cause Word to crash outright rather than just showing a file error. To test this, open Word first from the Start menu without opening any document. If Word opens cleanly on its own, the problem is the specific document, not Word. Then go to File > Open > Browse, navigate to the file, click the dropdown arrow next to the Open button, and choose "Open and Repair." Word's built-in recovery engine can often salvage the text content even when the file structure is broken. If that fails, try opening the file on a different PC or in Google Docs, sometimes a fresh parser can read what Word's own engine can't.
My Word crashes when I try to print, is this the same problem?
Probably not. Crashing on print specifically usually points to a printer driver conflict rather than a corrupted Word installation. The fix is different: go to Settings > Bluetooth & devices > Printers & scanners, click your printer, and choose "Remove device." Then reinstall the printer driver fresh from the manufacturer's website. As a quick test, try printing to "Microsoft Print to PDF", if that works without crashing but your actual printer crashes Word, the driver is definitely the issue. Also make sure your printer driver is updated, as outdated drivers are one of the most common causes of application crashes during the print process.
I deleted Normal.dotm but now all my custom styles and macros are gone, can I get them back?
If you renamed Normal.dotm to Normal.dotm.old (as the guide recommends rather than outright deleting), you can recover them. Open the renamed Normal.dotm.old file directly in Word, go to File > Open > Browse, navigate to %AppData%\Microsoft\Templates, change the file filter to "All Files," and open Normal.dotm.old. From there, you can use the Organizer (Developer tab > Document Template > Organizer) to copy styles and macros from the old template into the new Normal.dotm. AutoText entries are stored differently, go to Insert > Quick Parts > AutoText > Save Selection to AutoText Gallery to manually rebuild them from the old file's content.