If you have tried all the steps above and the error persists, the problem may be hardware‑related or indicative of a deeper system corruption that requires expert attention. In such cases, consider contacting Microsoft Support, visiting a certified repair shop, or posting detailed information on community forums like Microsoft Q&A or the Steam community. Be sure to include:
Design goals
With patience and this guide, you have a clear roadmap to resolving the error and getting your software back up and running.
Turn your antivirus back on after adding the new folder to your exclusions.