Quick Summary
Error code 45 on Windows typically indicates a hardware issue related to the printer or other external devices. This error can prevent you from printing or using the device.
Common Causes
- Hardware Connection Issue: A loose or faulty connection between the device and the computer, or a malfunctioning device itself, can cause the error.
- Driver Problems: Outdated, corrupted, or incompatible drivers can lead to the error.
- System File Corruption: Corruption in system files or registry entries related to the device can cause the error.
Step-by-Step Fixes
Method 1: Check Device Status in Device Manager Show Steps ↓
Step 1: Open the Device Manager by pressing the Windows key + X and selecting Device Manager from the list.
Step 2: Locate the problematic device and check its status for any error messages or tips that may help guide further troubleshooting.
Method 2: Reinstall Device Drivers Show Steps ↓
Step 1: Open the Device Manager by pressing the Windows key + X and selecting Device Manager from the list.
Step 2: Locate the problematic device, right-click on it, and select Uninstall device. Follow the prompts to complete the uninstallation.
Step 3: Restart your computer. Windows should automatically reinstall the device driver upon restart. If not, you can manually update the driver by right-clicking on the device in Device Manager and selecting Update driver.
Step 4: If the issue persists, consider downloading the latest driver from the manufacturer's website and installing it manually.
Method 3: Run System File Checker Show Steps ↓
Step 1: Open the Command Prompt as Administrator by right-clicking on the Start button and selecting Command Prompt (Admin).
Step 2: Type the command sfc /scannow to scan for corrupted system files and replace any damaged files automatically. This command checks and replaces system files, which may resolve the error.
Step 3: Restart your computer after the scan is complete and check if the error has been resolved.
Method 4: Check Hardware Connections Show Steps ↓
Step 1: Ensure all cables are securely connected to both the device and the computer.
Step 2: Try using a different cable or port to isolate if the issue is with the cable or port itself.
Step 3: If the device has a power source, make sure it is properly connected and turned on.
- For printers, check the paper tray for jams, ink cartridges for low levels, and ensure proper paper alignment.
- For other devices, refer to the user manual for specific troubleshooting steps.