It’s truly annoying and inconvenient when your keyboard just stopped working for no reason. If you have a Logitech K750 keyboard and it’s not working, don’t worry. After reading this post, you’ll be able to fix this issue easily.

Here’re the fixes:

The following fixes have helped many users solve the Logitech K750 not working issue. You don’t have to try them all. Simply work from the top down until you find the one that does the trick.

  1. Troubleshoot the hardware issue
  2. Uninstall and reinstall the Logitech keyboard driver
  3. Update your Logitech K750 driver
  4. Restart the HID Human Interface Device Service

Fix 1 – Troubleshoot the hardware issue

Before we get down to further fixes below, you should first confirm the keyboard-not-working problem isn’t caused by any hardware damages. Follow the 3 steps here to do simple troubleshooting:

1) Make sure the batteries for your wireless keyboard still have power, which is something important that you may ignore.

2) Plug the unifying receiver into another USB port in case the previous one you use is defective.

3) Connect your Logitech K750 keyboard to another computer. If it fails to work neither, your device is probably broken and you’d better have it repaired.


Fix 2 – Uninstall and reinstall the Logitech keyboard driver

A corrupt or incompatible keyboard driver will stop your Logitech K750 from working the right way. To see if that’s the case, simply reinstall the Logitech driver via the Device Manager.

1) Click the Start button. Then, scroll the list to find Windows System, click it and click Control Panel.

2) Select Small icons next to View by, and click Device Manager.

3) Double-click Keyboards to expand the list.

4) Right-click your Logitech keyboard listed and click Uninstall device.

5) Click Uninstall to confirm.

After you’re done with the steps above, reboot your computer for the changes to take effect. Upon restart, Windows is supposed to detect your Logitech K750 keyboard and automatically install the correct driver. If this doesn’t help, move on to Fix 3.


Fix 3 – Update your Logitech K750 driver

The Logitech K750 keyboard not working issue tends to be driver-related. If reinstalling the driver doesn’t resolve it, it’s possible that your keyboard driver is outdated, and you should install the latest driver to fix the problem.

There are two ways you can update the keyboard driver: manually or automatically.

Option 1 – Download and install the keyboard driver manually

Logitech keeps updating drivers. To get them, you need to go to its official support website, find the drivers corresponding with your specific flavor of Windows version (for example, Windows 32 bit) and download the driver manually.

Once you’ve downloaded the correct drivers for your system, double-click on the downloaded file and follow the on-screen instructions to install the driver.

Option 2 – Automatically update the Logitech K750 driver

If you don’t have the time, patience or computer skills to update your keyboard driver manually, you can do it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks:

1) Download and install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click the Update button next to the flagged Logitech keyboard driver to automatically download the correct version of that driver, then you can manually install it (you can do this with the FREE version).

Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system. (This requires the Pro version which comes with full support and a 30-day money back guarantee. You’ll be prompted to upgrade when you click Update All.)

You can do it for free if you like, but it’s partly manual.
The Pro version of Driver Easy comes with full technical support.
If you need assistance, please contact Driver Easy’s support team at support@drivereasy.com.

Updating the driver is a solid solution for most device glitches. But if this method still fails to fix your keyboard, go to the next one below.


Fix 4 – Restart the Human Interface Device Service

Human interface device (or HID) including mouse and keyboard, needs to run on certain services on your PC. If it’s not started and running properly, you’ll run into the Logitech K750 keyboard issue.

1) Click the Start button. Then, scroll the list to locate Windows Administrative Tools and click Services.

2) Scroll down to right-click Human Interface Device Service. If it’s not running, click Start. If it’s already running, click Restart.

3) After the service restarts, right-click it and click Properties.

4) Set Startup type to Automatic, and click OK.

Now you should be able to use the Logitech keyboard as expected.


Hopefully, this post comes in handy when you’re fixing the Logitech K750 not working problem. If you have any questions or suggestions, feel free to share them in the comment area below.

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