Windows Device Manager Code 45 — Device Not Connected

Windows Device Manager Code 45 means the device was previously connected but is not currently attached to the computer. 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: Currently, this hardware device is not connected. (Code 45). Ghost device from previously connected hardware. No action needed unless you want to use the device. Common with USB devices that were unplugged. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: USB device was unplugged. Bluetooth device out of range. Network device disconnected. Hardware removed but driver entry remains. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Reconnect the device to resolve the error. If device is no longer needed, uninstall from Device Manager. Show hidden devices to see ghost entries. Clean up with Device Cleanup Tool. 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.