403 questions
403 questions with Windows development | Windows Driver Kit (WDK) tags
2 answers
Windows support for USB HID HUTRR110 (System Microphone Mute) and HUTRR106 (Call State Management Control)
Hello, I am developing firmware for a custom USB Composite Device (Keyboard + Consumer Control) and I am trying to implement a hardware-level Microphone Mute toggle button. I have attempted to implement this using two different recent HID specifications…
Windows development | Windows Driver Kit (WDK)
asked
2026-04-15T10:21:13.95+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 37%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBG%3C/text%3E%3C/svg%3E)
Bhargav Gondaliya
0
Reputation points
answered
2026-10-01T15:47:01.1533333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 48%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERR%3C/text%3E%3C/svg%3E)
Richard Robinson
0
Reputation points
2 answers
Regression in 25H2 HLK Studio (26100.8328): Create Package crashes when adding driver folder, works in previous build 26100.7705
Hi Microsoft team, We encountered a reproducible issue in the Windows 11 25H2 HLK environment after updating the HLK server from build 26100.7705 to 26100.8328. Environment: HLK Server OS: Windows Server 2019 Standard HLK Controller Version:…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-06-01T10:55:44.7833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 95%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
StevenS
20
Reputation points
commented
2026-09-29T08:49:01.9066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(166.4, 18%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETL%3C/text%3E%3C/svg%3E)
Taki Ly (WICLOUD CORPORATION)
5,630
Reputation points Microsoft External Staff
Moderator
0 answers
Windows HLK WLAN Roaming Test: Existing TCP connection fails after successful roam with Aruba APs
Hi, I am running the Microsoft Windows HLK WLAN Roaming tests for a WLAN driver using two Aruba APs (Aruba AP-515). The DUT successfully roams between the two APs. The WLAN association to the target AP is successful and the DUT retains its IP…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-29T07:09:34.14+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(217.60000000000002, 60%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHS%3C/text%3E%3C/svg%3E)
Hanna Syed Anvartheen
5
Reputation points
asked
2026-09-29T07:09:34.14+00:00
Hanna Syed Anvartheen
5
Reputation points
1 answer
HLK Test Requirements for Certification of Bluetooth HCI UART Transport Driver
Hi, We have developed a Windows Bluetooth HCI UART driver that provides the transport interface between our Bluetooth chipset and the Windows native Bluetooth Host Stack. The driver is primarily responsible for: UART communication between the Windows…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-28T10:50:55.13+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 70%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJH%3C/text%3E%3C/svg%3E)
Jhasim Hassan
0
Reputation points
answered
2026-09-28T10:51:19.4366667+00:00
AI answer
1 answer
HLK NdisStudio tests blocked: stale 'nds-protocol' NetSetup object, NetSetupCreateObject fails with 0x800700B7
Hello, All [NdisStudio] OidRequestTest jobs fail on our HLK client before any test logic runs. We have root-caused it to a stale NetSetup object and need a supported way to remove it. ENVIRONMENT HLK client: Windows 11 Pro for Workstations, build…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-21T03:06:47.04+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(288, 7.000000000000001%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAN%3C/text%3E%3C/svg%3E)
Abhishek Naik
0
Reputation points
edited an answer
2026-09-25T23:27:16.75+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(134.4, 87%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EME%3C/text%3E%3C/svg%3E)
MSTF Employee
0
Reputation points Microsoft Employee
1 answer
NDIS LWF: is restoring the original NET_BUFFER_LIST chain mandatory when NDIS_RECEIVE_FLAGS_RESOURCES is set?
We maintain an NDIS lightweight filter that inspects an image stream carried over UDP. In FilterReceiveNetBufferLists the filter splits the indicated chain into two lists: the NBLs it consumes itself, and the remaining NBLs, which it passes up…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-21T08:40:17.68+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(243.2, 98%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESP%3C/text%3E%3C/svg%3E)
박승용 (Seungyong Park)
0
Reputation points
answered
2026-09-21T08:40:40.5066667+00:00
AI answer
0 answers
Windows USB Audio 2.0 Drivers do not support bSubslotSize of 3
Hi, I'm developing a USB audio device for use with Windows. The documentation I've found for the USB Audio Class 2 drivers suggest the driver should be able to use any bSubslotSize from 1-4…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-16T22:27:13.7333333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(124.80000000000001, 69%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPF%3C/text%3E%3C/svg%3E)
Peter Frost
0
Reputation points
1 answer
Does a third-party Device MFT (DMFT) for a UVC webcam require WHQL/attestation signing, or is test-signing sufficient?
I want to apply a simple horizontal flip to the video stream from a USB UVC webcam (Logitech Brio 100), system-wide, before it reaches any application (Teams, Zoom, Chrome, etc.) — not just as a local preview mirror. From the docs (Device MFT Design…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-14T10:36:52.64+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(275.2, 67%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EB%3C/text%3E%3C/svg%3E)
Barishth
0
Reputation points
answered
2026-09-16T01:07:32.5366667+00:00
MSTF Employee
0
Reputation points Microsoft Employee
1 answer
Malfunction custom keyboard DLL & Windows Search
Hello, I built a keyboard driver using Visual Studio and the official Windows driver samples. The DLL works perfectly regarding the keyboard and its behavior. The problem is that when this keyboard is selected alone, Windows Search malfunctions and…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-11T07:55:38.62+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(150.4, 45%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFO%3C/text%3E%3C/svg%3E)
François T
20
Reputation points
edited an answer
2026-09-14T18:46:33.03+00:00
MSTF Employee
0
Reputation points Microsoft Employee
1 answer
Does FILE_LINK_POSIX_SEMANTICS allow replacing an existing destination opened without FILE_SHARE_DELETE?
Hello, I’m trying to clarify the documented Windows/NTFS semantics of POSIX-style hard-link destination replacement. Consider the following state: File A already exists at the destination path. A has an existing open handle. That handle allows…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-11T00:18:24.3666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 87%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
希望 匿名
0
Reputation points
answered
2026-09-11T00:18:50.5433333+00:00
AI answer
2 answers
Analysis of WHLK Test Items That Failed Certification
Currently, we have a product that needs to pass WHLK certification. Right now, there are three failed items in the test, and we want to consult you on how to resolve them: The test device selected is a HID-compliant device Test Item Interface …
Windows development | Windows Driver Kit (WDK)
403 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(220.8, 66%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETL%3C/text%3E%3C/svg%3E)
0 answers
How to fix the issue Code 10 (The device cannot start) which is occurring during the installation of the WLAN driver ?
Analyzed three instances : Fresh install : code 10 After reboot , we can able to see the device is enumerated properly If I disable-enable the device, it goes to the code 10 state again Instance 1 (Fresh install : code 10): Observation : When…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-09-02T09:58:06.5033333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 59%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENK%3C/text%3E%3C/svg%3E)
Nithish Karthik Thangaraj
0
Reputation points
edited the question
2026-09-02T10:02:16.1766667+00:00
Nithish Karthik Thangaraj
0
Reputation points
1 answer
One of the answers was accepted by the question author.
Where do I get the driver to install a USB bluetooth dongle
I just got a USB Bluetooth adaptor for a new mouse and keyboard. However, where do I get the driver so I can install this device. I run Windows 10
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2025-02-05T21:10:52.17+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 12%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENH%3C/text%3E%3C/svg%3E)
Nancy Horning
20
Reputation points
commented
2026-08-31T15:01:32.0633333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(217.60000000000002, 12%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERK%3C/text%3E%3C/svg%3E)
rajesh kumar
0
Reputation points
0 answers
I got an error during HLK client installation
Hi, I install the HLK Sever 26100.8328 on the Server machine. Then i ran the HLK client installation on other machine when the installation is running from the server machine Both machine are in the same network group. During the installation i got an…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-08-30T09:27:15.77+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 23%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIA%3C/text%3E%3C/svg%3E)
IV10 Alex Hanukov
0
Reputation points
commented
2026-08-30T09:47:49.5633333+00:00
IV10 Alex Hanukov
0
Reputation points
1 answer
[HLK] Driver attribute test fails with "Driver package folder not found"
Hello, I am using HLK (Server Side) to execute HLK test cases for my TouchScreen device system 25H2 (Client Side). All test cases are passing except the Driver Attribute Test. The test report shows the following error : Test Authoring and Execution…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-06-24T02:25:56.6+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 78%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKL%3C/text%3E%3C/svg%3E)
Kai Liu
0
Reputation points
commented
2026-08-26T13:52:35.93+00:00
Darth Tester
70
Reputation points
0 answers
Microsoft BTP / HLK Support Request – Model 2433 ESP32 Wi-Fi Firmware download error and LE Supported States Test cases error
Environment BTP version: v1.14.0 Device: Microsoft Model 2433 ESP32 Wi-Fi module ESP32 firmware package: C:\BTP\v1.14.0\DeviceFirmware Target test: Bluetooth - LE Supported States - Act as a peripheral (Development and Integration) Tool used:…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-08-20T13:33:55.69+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(275.2, 60%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EE%3C/text%3E%3C/svg%3E)
esp_qing
0
Reputation points
commented
2026-08-26T13:30:24.76+00:00
Darth Tester
70
Reputation points
0 answers
Hardware Lab Kit support plan on Engage Center.
We are currently working on Windows HLK certification and are encountering a few failing HLK test cases for our driver. We would like to raise a technical support request with the HLK support team. How to purchase the a support plan required to open an…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-08-05T10:03:29.29+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 70%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETS%3C/text%3E%3C/svg%3E)
Tarun Sharma
10
Reputation points
commented
2026-08-26T12:34:12.9766667+00:00
Darth Tester
70
Reputation points
0 answers
HLK DF‑PNP Rebalance Fail Restart Device: E: target widens to all volumes; QueryStop fails even without my driver installed.
Hi all, I’m trying to pass HLK tests for my driver. Driver: KMDF PnP volume upper‑filter (attached via UpperFilters to the Volume/Disk class) OS: Windows Server 2016 Datacenter, build 14393 HLK: 10.1.14393.8069 Test: DF - PNP Rebalance Fail Restart…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-08-11T19:33:25.89+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 83%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
Karthik
0
Reputation points
commented
2026-08-26T12:17:22.17+00:00
Darth Tester
70
Reputation points
0 answers
Is the durable Artifact Signing vendor EKU (1.3.6.1.4.1.311.97.*) accepted as an identity anchor for LSA plug-in signing, as it is for the Antimalware signer?
We are preparing a submission to the Partner Center File Signing Service for an LSA plug-in, and we would like to understand one point before enrolling. The LSA signing requirements state that "the CAB file signature must match the EV code signing…
Windows development | Windows Driver Kit (WDK)
403 questions
asked
2026-08-25T07:36:40.1433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 48%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECL%3C/text%3E%3C/svg%3E)
Cesario Lia
0
Reputation points
asked
2026-08-25T07:36:40.1433333+00:00
Cesario Lia
0
Reputation points
0 answers
Hardware program enrollment questionnaire submitted on Aug 13, no response, dashboard not showing
Seller ID: 95543940 Issue Summary: 1. We completed and submitted the "Hardware Program Enrollment Questionnaire" on August 13, 2026. 2. As of today (August 20, 2026), we have not received any reply or status update via email. 3. The Hardware…
Windows development | Windows Driver Kit (WDK)
403 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 46%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYL%3C/text%3E%3C/svg%3E)