Word crashes on documents with certain fonts – fixes

Cause #1: Corrupt font cache (most common, 90% of cases)

Word maintains a cache of font information to speed up loading. When this cache gets corrupted—often after a Windows update or installing a new font—Word will crash the second it tries to render a font listed in that cache. You'll see the document title in the title bar, then a spinning beach ball or "Not Responding" before the crash.

Here's the fix. It's simple and doesn't require any risky registry edits.

1. Close Word completely. Make sure it isn't running in the background. Check Task Manager (Ctrl+Shift+Esc) and kill any WINWORD.EXE processes.
2. Open File Explorer and paste this into the address bar:

   %localappdata%\Microsoft\Windows\Fonts

   If you're on Windows 10 or 11, this folder might be empty—that's normal. But the cache file we need is elsewhere.
3. Delete the font cache file. Press Win+R, type

   %windir%\ServiceProfiles\LocalService\AppData\Local

   and hit Enter. Sort by date modified (newest first).
4. Look for a file called FontCache.dat or FontCache (no extension). Right-click it and delete it. If you get a permission error, you need to take ownership first, but that's rare.
5. Restart your computer. Windows will rebuild the font cache automatically when you boot back up.
6. Open Word and try the document again.

What you should see: After restart, Word will take slightly longer to open the first time (maybe 2-3 seconds extra) as the cache rebuilds. After that, the document should open normally. If it still crashes, move on to the next fix.

Cause #2: A single corrupted font file

Sometimes a specific font file itself gets damaged—maybe from a bad download, a partial install, or drive errors. Word will crash only when that particular font is used in the document. The crash might happen on page 2 or 3, not immediately on open.

To find and remove the bad font:

1. Open the Fonts control panel: Press Win+R, type

   control fonts

   and hit Enter.
2. Identify the suspect font. If you know which font the document uses (check the file's properties or ask the sender), look for it in the list. If not, look for fonts you recently installed or fonts with unusual names (symbols, numbers, or incomplete names).
3. Right-click the suspect font and choose Delete. Confirm the UAC prompt if it appears.
4. Restart Word and try the document again.

Tip: If you're not sure which font is causing trouble, open Word in Safe Mode. Hold Ctrl while clicking the Word icon, or run

winword.exe /safe

What you should expect: Deleting the bad font will remove it from Word permanently. If you need that font, re-download it from a trusted source and reinstall it. If Word still crashes after removing the font, the font wasn't the problem—move to Cause #3.

Cause #3: Corrupt Office installation (unlikely but possible)

If neither the font cache nor a specific font file fixes it, the Office installation itself might be broken. This can happen after a failed update or a system file corruption. The crash will happen with any document using a non-standard font, not just one file.

The fix is a repair of Office:

1. Close all Office apps (Word, Excel, Outlook, etc.).
2. Open Settings (Win+I), then go to Apps > Installed apps (or Apps & features on older Windows).
3. Find Microsoft 365 or Office in the list. Click the three dots (…) next to it and choose Modify.
4. You'll see two options: Quick Repair (fast, tries to fix without downloading) and Online Repair (full reinstall, needs internet). Start with Quick Repair—it takes about 5 minutes.
5. Follow the prompts. You might need to restart at the end.
6. If Quick Repair doesn't help, run Online Repair. That takes 30-40 minutes but replaces every Office file.

What you should see: After the repair, open Word. It might rebuild its settings (you'll see a "Welcome" screen). Then try the document. If it still crashes, you're dealing with a deeper system issue—like a corrupt Windows font service or a third-party add-in conflict. At that point, try disabling Word add-ins one by one: go to File > Options > Add-ins, select COM Add-ins from the dropdown, and uncheck them all. Restart Word. If the document opens, re-enable add-ins one at a time to find the bad one.

Quick-reference summary table

Start with the font cache fix. It's the most common, the fastest, and doesn't risk breaking anything. I've seen this fix work on hundreds of machines. If you're still stuck after trying all three, it's worth posting on a tech forum with the exact crash error code (like 0xc0000005) and the font name—someone may have seen that exact combo before.