Possible causes:

Fix: Disable driver signature enforcement temporarily:

When to update: If you upgrade to Windows 11 23H2 or encounter bugs. When to roll back: If a new driver causes the scanner to freeze or lose duplex function.

How to roll back:

How to update safely: Never use “driver updater” software. Manually check Zong’s website every 6 months.

For older BVS models no longer listed on the main site, try:

Many scanning applications (Adobe Acrobat, NAPS2, QuickBooks) require either TWAIN or WIA drivers. The Zong BVS installer usually includes both. Ensure they are selected during installation.

If the Zong BVS scanner driver is truly lost (company closed, no archive):

Be extremely careful. Many third-party websites claim to offer the “Zong BVS scanner driver” but bundle malware or adware. Here are safe sources:

If the driver comes as a folder with .inf, .sys, and .cat files:

Cause: The driver is installed as WIA but the software needs TWAIN. Fix: During driver installation, select “Custom” and ensure the TWAIN data source is checked. Then, in your software, select File > Import > TWAIN Source and choose Zong BVS.