The most consistent cause is a Windows update targeting the PrintNightmare exploit, which tightened printer driver permissions and broke legacy sharing setups. Other contributing factors include corrupt or unsigned drivers, missing dependencies like mscms.dll, or a malfunctioning Print Spooler service. Follow the methods below for a set of proven solutions that will help you troubleshoot and hopefully fix the issue.
1. Run the Printer Troubleshooter
You can resolve most common printer connection problems (including the 0x000003e3 error) by using the built-in Printer Troubleshooter and following any recommended fixes—assuming a Windows Update isn’t the root cause. Note: The Printer Troubleshooter automatically checks your printing components for issues as soon as you launch it. If it finds a problem, it will recommend a way to fix it for you.
2. Update your Windows Build to the Latest Version
If the 0x000003e3 error code started appearing after a recent Windows update or installation, it’s a good idea to check for further updates. Sometimes Microsoft releases a hotfix that resolves these issues.
3. Uninstall the Latest Problematic Update
If updating didn’t help and the issue appeared after a recent update, you may need to uninstall that update. Sometimes, rolling back the latest Windows update can resolve compatibility problems with your printer.
4. Install the Manufacturer-Specific Driver
If your network printer still fails to connect, the issue may be caused by Windows automatically installing a generic printer driver during setup. These basic drivers often lack full compatibility, especially with older or business-class printers, resulting in this errors. To ensure full support for your printer’s features and communication protocols, download and install the official driver from your printer manufacturer’s support website.
5. Update or Uninstall TrendMicro (if applicable)
If you’re using TrendMicro security software on your network, it could be interfering with your printer’s print spooler service—a common issue with some security solutions. TrendMicro has released a patch to fix this. If you’re running TrendMicro build 12.0.4440, simply update to a newer version, and the issue should be resolved. If updating isn’t possible, you may need to uninstall TrendMicro completely. You can follow this step-by-step guide to remove it without leaving any leftover files. If the problem persists, try the next method below.
6. Delete all Printer Keys & Restart Print Spooler Service
In some cases, the 0x000003e3 error is caused by corrupt or conflicting registry entries—particularly those under the Client Side Rendering Print Providers key. These entries can interfere with network printer communication and prevent proper driver initialization. To solve this, you’ll manually delete the problematic registry key and restart the Print Spooler service, which handles all print-related operations in Windows. Warning: Editing the Windows Registry can break essential system functionality if done incorrectly. Before proceeding, make sure to create a full Registry backup or a System Restore Point. Only follow these steps if you’re confident, and do not modify any key outside of the instructions.
