How to fix Error 1783 on Windows 11

by

Why This Error Happens

Error 1783, “The stub received bad data,” typically occurs when there is a mismatch or corruption in the RPC (Remote Procedure Call) communication between client and server processes on Windows. This is often caused by corrupted system files, mismatched DLL versions, or interference from third-party security software that intercepts RPC calls. Incomplete Windows updates or damaged Group Policy components can also trigger this error, especially during authentication or remote management tasks.

Step-by-Step Resolution Guide

Step 1: Run System File Checker and DISM

  • Open Command Prompt as Administrator (search “cmd,” right-click, “Run as administrator”).
  • Type sfc /scannow and press Enter to scan for corrupted system files.
  • If issues persist, run DISM /Online /Cleanup-Image /RestoreHealth to repair the Windows image.
  • Restart your computer once both scans complete.

Step 2: Check and Reset RPC Service Configuration

  • Press Win + R, type services.msc, and press Enter.
  • Locate “Remote Procedure Call (RPC)” and ensure its status is set to “Running” and Startup type is “Automatic.”
  • Also verify “DCOM Server Process Launcher” and “RPC Endpoint Mapper” are running.
  • If any service is stopped, right-click and select “Start.”

Step 3: Temporarily Disable Third-Party Antivirus/Firewall

  • Some security suites block RPC-related ports (135, 445) causing data corruption in the stub.
  • Navigate to your antivirus settings and disable real-time protection temporarily.
  • Attempt to reproduce the error; if it disappears, add an exception for the affected application in your antivirus firewall settings.

Step 4: Re-register Core System DLLs

  • In an elevated Command Prompt, run the following commands one by one:
  • regsvr32 ole32.dll
  • regsvr32 oleaut32.dll
  • regsvr32 rpcrt4.dll
  • Restart the system to apply the changes.

Alternative or Verification Steps

  • After completing the steps, reproduce the original action that triggered Error 1783 (e.g., remote registry access or Group Policy update) to confirm it now completes without the “bad data” message.
  • If the error persists, check the System and Application logs in Event Viewer (eventvwr.msc) for correlating Event IDs to identify if a specific third-party driver or application is the root cause.