If you’ve encountered the Runtime Error R6025 – Pure Virtual Function Call, it’s a C++ runtime issue usually caused by software attempting to invoke a pure virtual function inappropriately. Essentially, the program tries to call a method that hasn’t been properly implemented—often due to a bug or corruption in the application or system files.
What the Error Means (For Developers)
This error arises when a program calls a pure virtual function through a pointer that doesn’t reference a valid implementation object. It’s often due to improper object casting during execution.
How to Fix the R6025 Runtime Error
1. Run System File Checker (SFC)
- Open Command Prompt as Administrator.
- Execute:
sfc /scannow - This repairs any corrupted system files that may be causing the error.
2. Perform a Clean Boot
- Press
Win + R, typemsconfig, and hit Enter. - On the Services tab, hide all Microsoft services, then disable the rest.
- Restart your PC and check if the error persists.
3. Repair or Reinstall .NET Framework
- Go to Turn Windows features on or off.
- Uncheck .NET Framework 3.5, restart your PC, then re-enable it.
- This can resolve issues stemming from framework corruption.
4. Reinstall or Repair Visual C++ Redistributables
- Go to Control Panel → Programs and Features.
- Locate the Microsoft Visual C++ Redistributable, and choose Repair—or reinstall the latest version.
5. Update or Rollback Drivers
- Open Device Manager and update drivers (especially graphics or hardware-related).
- If the error began after a driver update, consider rolling it back.
- Faulty drivers are a common culprit for runtime crashes.
6. Remove Suspicious Third-Party Applications
- Uninstall recently added or suspicious apps that may conflict.
- Follow up with a Disk Cleanup, removing temporary files.
- Then, reinstall the affected software cleanly.
Final Thoughts
The Runtime Error R6025 is often triggered by application bugs, software corruption, or runtime library issues. The solutions above—especially repairing system files, runtime libraries, and drivers—typically resolve the issue quickly.
Let me know if you’d like help applying any of these steps or want tailored guidance for game or app-related R6025 errors!
