Fix hardware device not connected (Code 45) error …

by Kelvin

  • Code 45 The hardware device is not connected displayed when you try to access a device that is physically connected, but Windows I can't recognize it.
  • Reconnect your device, turn it on if possible, and install or update device drivers. These are the most common ways to fix this. More details in the article.
  • This article is part of a series on device connection issues. Please refer to the Device connection error section on the site.
  • If your computer is slow or may have random errors, visit the Windows 10 Troubleshooting Hub to know how to deal with them.

Do you receive an error message “Currently, this hardware device is not connected to the computer. (Code 45) ? Don't be alarmed, this post is just for you.


Various peripheral devices can be connected to the PC, such as USB, mouse, keyboard and other USB connected devices. The error code 45 appears more especially in Windows 10 PC when the operating system cannot communicate with the connected device. The error implies that the connected hardware device is not being recognized by WindowsHence the error message.

However, this error can also be caused by corruption Windows Registry keys, outdated device drivers, or faulty hardware. Meanwhile, we have found applicable solutions for error code 45 problem.

Windows 10 will not recognize the hardware? Try these solutions

  1. PC registry repair
  2. Try to perform a DISM scan
  3. Update drivers
  4. to run Windows To update
  5. Uninstall and reinstall the driver
  6. Run the hardware and device troubleshooter
  7. Replace USB device

Solution 1 – Repair PC Registry

The easiest way to repair your Windows registration is to use a dedicated tool like CCleaner. Alternatively, you can also use Microsoft's System File Checker to check for system file corruption. The utility verifies the integrity of all system files and repairs problem files when possible. Here's how to run an SFC scan on all Windows’Versions:

  1. To go Start > type cmd > right click Symbol of the system > select Execute as an administrator.command prompt hardware device not connected
  2. Now type the command sfc / scannow.sfc scanning hardware device not connected
  3. Wait for the scanning process to complete, and then restart your computer. All damaged files will be replaced on reboot.

Solution 2 – Try to perform a DISM scan

If the above method did not fix the problem for you, you may want to try running a DISM scan. This is fairly simple to do, and you can do it by following these steps:

  1. Start Symbol of the system as administrator
  2. Once the command prompt opens, enter DISM / Online / Cleaning Image / RestoreHealth and press Get in to run it
  3. DISM scanning will now start. This scan can take approximately 20 minutes or more, so please do not interfere or interrupt it.

After the scan is complete, your installation should be repaired and the problem will disappear.

Solution 3 – Update the drivers

Outdated or old device drivers may cause error code 45. Follow the steps below to update the driver:

  1. To go Start > Type Device administrator and hit Get in key.
  2. Click the category of the affected device (such as USB, mice, keyboards, etc.) to expand it.
  3. Right-click on the affected driver and click Update driver software.update the driver software error 45
  4. Follow the instructions to update the device driver.

If you want to update all your drivers automatically, you can always use third party solutions like TweakBit Driver Updater. By using this tool you will update all your drivers automatically with just a few clicks.

Get Tweakbit Driver Updater Now

Disclaimer: some features of this tool may not be free

Solution 4 – Run Windows To update

Also, you can fix the code 45 error problem by updating your Windows 10 OS to the latest version. Microsoft constantly releases Windows Updates to improve system stability and fix various issues and errors associated with startup error. Follow these steps to update Windows 10 OS:

  1. Go to Start> type to update in the search box and then click Windows To update to proceed.
  2. At Windows Update window, check for updates and install available    update error 45
  3. When the update is complete, restart your Windows PERSONAL COMPUTER.

Solution 5 – Uninstall and reinstall the driver

Windows Users reported that they were able to resolve the code 45 error problem by trying this solution. Here's how to do this:

  1. Right click on Start> Select Control Panel.
  2. Double-click System> Click the Hardware tab and then select Device administrator.
  3. Click the category of the affected device (such as USB, mice, keyboards, etc.) to expand it.
  4. Right-click on the affected driver> Click Uninstall, and then follow the prompts.uninstall device hardware device not connected
  5. Restart your PC. Windows automatically detects the change in your hardware.
  6. Download and install the hardware driver from the manufacturer's or Microsoft's official website driver download center.

Solution 6 – Run the hardware and device troubleshooter

One of the simplest ways to fix the hardware device connectivity problem is to run the hardware and device troubleshooter. This feature checks for problems and allows the correct installation of new hardware devices. Here's how to run the troubleshooter:

  1. To go Start > Select Control Panel.
  2. Now go to View by option in the upper right corner click the drop down arrows then select Large    troubleshooter error code 45
  3. Click Troubleshooting> Click See All option in the left pane.
  4. So click Hardware and devices. Follow the prompts to run the troubleshooter.

Solution 7 – Replace the USB device

If you are still experiencing the code 45 error problem after trying all the above solutions then the device is very likely faulty. Some hardware devices are not original, therefore they do not last longer. Repair the faulty device if you have good technical knowledge or consider consulting a computer engineer to help fix it.

However, we recommend that you purchase a new device and install it on your Windows PC normally. This will prevent “this hardware device is currently not connected to the computer. (code 45) error “on your PC.

We would love to hear from you if these solutions helped. Let us know your experience by leaving your comment in the section below.

Frequently Asked Questions: Learn more about the unconnected hardware device error 45

  • How do I reconnect a hardware device?

Once you have connected your device again, turn on the computer and wait for it to fully charge. Typically, it will detect hardware changes and perform an automated installation. If not, go to your device's support website and download the drivers. Install them according to the instructions and reboot if necessary.

  • How do I enable hidden devices in Device Manager?

Click Start and search for device manager. At Device administrator window, in the menu bar, select See and check the Show hidden devices option.

  • How do you currently repair this hardware device not connected error?

Follow the instructions in this article closely. Perform a driver update, repair your registry, and run the troubleshooter from Windows.

Editor Note: This post was originally published in November 2017 and has since been renewed and updated in May 2020 for its freshness, precision and comprehensiveness.

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