How to Verify a Driver Download
Microsoft WHQL Certification, Digital Signatures, and Security Catalog Information
Before downloading a driver, try to obtain one that has a WHQL (Windows Hardware Quality Labs) signature. For Windows drivers, this means Microsoft has tested the driver and certified it for compatibility with Windows.
Most driver packages also include a Security Catalog (.cat) file. This file is used during installation to verify that the driver files are valid and have not been modified since they were signed by the publisher.
You can view information contained within a .cat file by double-clicking it in Windows. The catalog may contain version information, digital signatures, and cryptographic hashes used to verify the integrity of the driver package.
SHA-256 Hash Verification
Many driver repositories provide a SHA-256 hash for downloadable files. For example, files downloaded from OEMDrivers.com include a SHA-256 checksum that can be compared against the downloaded file to ensure it has not been altered or corrupted.
Verify a SHA-256 Hash Using PowerShell
Get-FileHash -Path "C:\path\to\your\sp45664.exe"Verify a SHA-256 Hash Using 7-Zip
Right-click the file in Windows Explorer:
7-Zip → CRC SHA → SHA-256Compare the calculated hash with the hash published alongside the download.
Red Flags to Watch For
Driver Updater Utilities
Many driver updater utilities still exist and often prey on users who are desperate to fix a problem quickly. In many cases, Windows Update or the hardware manufacturer's website is a safer option.
Download Managers
Most drivers are relatively small downloads, and modern web browsers can download them directly. Be cautious of websites that require proprietary download managers before you can access a driver.
Password-Protected ZIP Files
Password-protected archives are sometimes used to prevent antivirus software from scanning files before they are extracted. Be cautious when downloading driver packages distributed in encrypted archives.
Multiple Fake Download Buttons
When you click a download button, it should download the driver. If a page contains numerous download buttons, pop-ups, redirects, or unrelated software offers, proceed with caution.
Drivers That Require Registration
Be cautious of websites that require extensive registration or personal information before providing a driver download. In some cases, the primary goal may be lead generation or marketing rather than providing drivers.
Final Thoughts
If you are unsure whether a driver is safe, ask for help before installing it. OEMDrivers maintains active Discord and Reddit communities where experienced users may be able to assist.
When in doubt, do not install the driver until you have verified its source and authenticity. Taking a few minutes to check a driver can save hours of troubleshooting later.
