invalidatefntcache.exe - Analyze and How to Fix Errors

⚠️ Important Notice: Clear Font Cache to Resolve Display Issues Quickly with invalidatefntcache.exe Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	64-bit (x64)	Compatible with only 64-bit Windows
Creation date	25.09.2012 23:28:49
File version	6.1.7600.17130
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	8 kb.	8192 bytes.

Hashes:

MD5: 3ae1eb410c764db3a6c1c427ae11aaff ✅
SHA-1: f015277e14cd24194cfc7d16a0e3b85823c0e88b
SHA-256: b421cb6e1fadf9af3c5e85bc158bd76b9b09e2bd30139f1ec30ef46aa521e466
SHA-512: 469ba5397fe9a74b4fbd10a0bafb27e0f77bb131cbf4bbc213833052c30686c09da8526192aface511155d87bf17383ad7192451af19ee7d13f57f92441e751f

✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.

File Description: invalidatefntcache.exe

invalidatefntcache.exe is a legitimate Windows operating system component developed by Microsoft. Its primary function is to invalidate and rebuild the system font cache (FntCache.dat) when Windows detects corruption or changes in system fonts. This ensures that fonts render correctly across your applications.

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Standard File Location

The genuine file is always located in the Windows system directory:

• C:\Windows\System32

Note: If you find this file in C:\Users\YourUsername\AppData or any temporary folder, it may be malware masquerading as a system process.

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How to Fix invalidatefntcache.exe Errors (Without Downloading Anything)

Errors related to this file usually happen because the font cache file is corrupted, or system files are damaged. You can fix this using built-in Windows tools.

Method 1: Delete the Corrupted Font Cache Manually

Windows will automatically recreate a fresh cache file once the old one is deleted.

1. Press Windows Key + R to open the Run dialog box.
2. Type services.msc and press Enter.
3. Locate Windows Font Cache Service in the list.
4. Right-click it and select Stop.
5. Open File Explorer and navigate to: C:\Windows\ServiceProfiles\LocalService\AppData\Local (You may need to enable "Show hidden files" in File Explorer settings).
6. Look for a file named FntCache.dat and delete it.
7. Go back to the Services window, right-click Windows Font Cache Service, and select Start.
8. Restart your computer.

Method 2: Run SFC and DISM Repairs

If the .exe file itself is corrupted, Windows can repair it using its local backup deployment image.

1. Press the Windows Key, type cmd, right-click Command Prompt, and select Run as administrator.
2. Type the following command to check system file integrity and press Enter:

   sfc /scannow

3. Wait for the scan to finish. If errors are found but cannot be fixed, type this command and press Enter:

   dism /online /cleanup-image /restorehealth

4. Restart your computer after the processes finish.

Method 3: Restart the Windows Presentation Foundation Font Cache Service

1. Open services.msc again using the Run dialog (Windows Key + R).
2. Scroll down to find Windows Presentation Foundation Font Cache 3.0.0.0.
3. Right-click it and choose Restart (or Start if it is currently stopped).

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📊 Diagnostics Tool: Verify Your invalidatefntcache.exe File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
ADVAPI32.dll
├── msvcrt.dll
└── KERNEL32.dll
Other versions:
️ invalidatefntcache.exe 6.1.7600.17130 32-bit (x86)