avrt.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Troubleshoot AVRT.DLL errors and optimize Windows performance with our guide. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	5.3 kb.	5425 bytes.

Hashes:

MD5: 389296c5077ecd1bce6c8cf7ddc67788
SHA-1: 738711336640ab982ba60827ba4ca831e557908a
SHA-256: 16d1b313e78632226022d35e748a056cc2f7af86e9cb77a6f8f80720def9af45
SHA-512: 2949684faa17a634021f67ee13282b099d2ef02a4346d179d63a2b690b8944ddb188113babb863703f23a1d4f8a081d18ce3e7148888eaf1afc64f05ee63d6b4

To fix the avrt.dll (Multimedia Realtime Runtime) error without downloading files from risky third-party websites, you need to repair your existing Windows system files.

1. Run SFC Scan

The System File Checker replaces missing or corrupted system files.

Press Windows Key + X.
Select Terminal (Admin) or Command Prompt (Admin).
Type sfc /scannow and press Enter.
Restart your computer after it finishes.

2. Run DISM Tool

If SFC fails, the Deployment Image Servicing and Management tool fixes the underlying Windows image.

Open Command Prompt (Admin) again.
Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
Wait for the progress bar to hit 100% and restart.

3. Reinstall Audio Drivers

Since avrt.dll handles multimedia scheduling, outdated audio drivers often cause this crash.

Right-click the Start menu and select Device Manager.
Expand the Sound, video and game controllers section.
Right-click your primary audio device (e.g., Realtek).
Click Uninstall device (leave the driver deletion box unchecked).
Restart your PC; Windows will automatically reinstall the driver.

4. Install Windows Updates

Microsoft frequently pushes patches for native DLL files via official updates.

Open Settings (Windows Key + I).
Go to Windows Update.
Click Check for updates and install all pending packages.

5. Re-register the DLL

If the file exists but Windows cannot read it, re-registering it resolves the path issue.

Open Command Prompt (Admin).
Type regsvr32 avrt.dll and press Enter.
Click OK on the confirmation pop-up.

📊 Diagnostics Tool: Verify Your `avrt.dll` 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.

Other versions:
️ avrt.dll 10.0.19041.5438 32-bit (x86) | ️ avrt.dll 10.0.19041.3636 64-bit (x64)
Similar files:
️avrt.dll.mui