Windows Driver Error Code 52 Digital Signature Invalid — What It Means & How to Fix It

Fix Windows Device Manager error code 52 when a driver cannot be verified because its digital signature is invalid or missing. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Error code 52 means Windows cannot verify the digital signature of the driver required for the device. Windows enforces driver signature enforcement to prevent unsigned or tampered drivers from loading. This is especially common after installing older drivers or drivers from unofficial sources. Windows 11 has stricter driver signing requirements than previous versions. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Driver is not digitally signed (common with old or third-party drivers). Driver signature has expired or was revoked by Microsoft. Corrupted driver files that no longer match their original digital signature. Installing a driver built for a different Windows version or architecture. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Download the latest signed driver from the device manufacturer's official website. If a signed driver is unavailable, temporarily disable driver signature enforcement: hold Shift + Restart > Troubleshoot > Advanced > Startup Settings > option 7. Check Windows Update for a compatible driver: Device Manager > right-click device > Update Driver > Search automatically. Verify the driver file integrity: right-click the .sys file > Properties > Digital Signatures tab. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Windows Error Codes collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.