Solved - Issue with USB devices after Windows 10 update ...

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Solved - Issue with USB devices after Windows 10 update KB4074588

Logitech is aware of a Microsoft update (OS Build 16299.248) which is reported to affect USB support on Windows 10 computers.

Support statement from Microsoft "After installing the February 13, 2018 security update, KB4074588 (OS Build 16299.248), some USB devices and onboard devices, such as a built-in laptop camera, keyboard or mouse, may stop working for some users."

If you are using Microsoft Windows 10, (OS Build 16299.248) and are having USBrelated issues. Microsoft has released a new update KB4090913 (OS Build 16299.251) to resolve this issue.

We recommend you follow Microsoft Support recommendations and install the latest Microsoft Windows 10 update: .

This update was released by Microsoft on March 5th in order to address the USB connection issues and should be downloaded and installed automatically using Windows Update.

For instructions on installing the latest Microsoft update, please see below: If you have a working keyboard/mouse If you have a non-working keyboard/mouse

If you have a working keyboard/mouse: 1. Download the latest Windows update from Microsoft. 2. If your operating system is 86x-based, click on the second option. If your operating system is 64x-based, click on the third option.

3. Once you have downloaded the update, double-click on the downloaded file and follow the on-screen instructions to complete the update installation.

NOTE: If you wish to install the update manually, you can download the 86x and 64x versions of the update from

If you currently have no working keyboard/mouse: For more information, see the Microsoft article on how to start and use the Windows 10 Recovery Environment (WinRE): Do the following:

1. Restart the system before Windows finishes loading the desktop three times in a row. Windows should automatically start the Windows 10 Recovery Environment (WinRE).

2. Once in WinRE select Troubleshoot > Advanced Options > Startup Settings. 3. In the bottom right corner of the window, click Restart.

4. Press 5 on your keyboard to select Enable Safe Mode with Networking.

5. In Windows Safe Mode, navigate to Windows Settings (Win+I) > Update and Security > Windows Update and install the latest updates.

Recover a non-responsive G933 gaming headset

If you have a G933 that is not functioning at all (ex. does not charge, does not turn on, does not connect etc.), try the following steps to recover the device:

1. Perform a hardware reset. 2. Update the G933 firmware. How to perform a hardware reset 1. Plug in the G933 to USB power. 2. Remove the left sideplate (on the mic side).

3. Press and hold the hardware reset switch with a pin for two seconds, as shown below. Repeat the two second press twice.

Update G933 firmware If the firmware update does not begin when you use LGS, you can manually update the firmware on your gaming headset using the Windows Command Prompt. NOTE: Please make sure to disconnect all other headsets from your computer before beginning this firmware update.

1. Make sure that both the headset and the wireless adapter are connected to the computer via USB connection before you run the update. Wireless adapter


2. Slide the power switch to ON 3. In the Command Prompt window, type the following to locate the G933 firmware

update utility, and then press Enter: cd C:\Program Files\Logitech Gaming Software\FWUpdate\G933

4. To run the utility with the /FORCE command, type the following command, and then press Enter: G933Update_v25.exe /FORCE

5. The utility will launch and begin the firmware update. Follow the on-screen instructions, and click Close once the update is complete.

Keyboard input lags when playing The Division and G933 headset is connected to PC

Issue: You may experience system-wide keyboard input lag when you play Tom Clancy's The Division, and you use a G933 gaming headset with Logitech Gaming Software (LGS) installed on your PC. This issue was discovered in the LGS LED Software Development Kit (SDK). It occurs on PCs with the following installed builds of LGS:

8.76.155 8.78.129 8.79.73 8.79.77 8.81.15 Resolution: This issue has been resolved with the release of LGS 8.82.149. You can download the latest version of LGS from your product's Download page.

New audio processor for Dolby Surround and DTS with Logitech gaming headsets

Logitech has recently made some changes to Dolby Surround and DTS support in Logitech Gaming Software (LGS) version 8.7x. The primary change was to move from kernel mode audio processing to user mode audio processing for audio effects. Please see the Microsoft Hardware Dev Center for more information on Windows Audio Processing Objects.

Microsoft has required vendors to adopt the new APO model for effect processing. They believe the new APO driver model provides a better overall audio effect experience. Specifically, system level crashes, or "blue screens", caused by older kernel mode drivers, are reduced when processing effects.

With this change, we understand there are questions that result from differences in how the Speaker Properties in Windows now appear. Previously, we've shown Surround Settings in our LGS Control Panel and have tried to duplicate these settings in the Windows Speaker Properties panel.

The images below show the Surround Sound settings in the LGS Control Panel and also show the Surround Sound settings that Logitech has added to the Windows Speaker Propertiespanel:

LGS Control Panel

Windows Speaker Setup Windows Speaker Properties Effects tab

After moving to the new APO model in LGS 8.7x, the Windows Speaker Setup now looks like this:

This is causing a lot of confusion with end users as it appears that only Stereo is supported on their headset. This is not the case. We are currently working on a future release of LGS that will no longer try to mirror the Surround settings in our LGS Control Panel in the Windows Speakers Properties panel. One main Control Panel for controlling surround is the cleanest and easiest way to provide the best support and eliminate confusion. This is not unique to Logitech as other headset manufacturers have also done this.


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