Recent Blogs 2 MIN READExploring USB4 in Windows Device Portal Overview USB4TM brings high-speed connectivity and advanced tunneling capabilities to modern Windows devices. To help developers and IT professionals visualize and manage USB4 topologies, Windows pro...Ugan-Sivagnanenthirarajah Microsoft USB Blog Nov 27, 2025 as usb hid usb USB4 windows 11 237Views0likes0Comments 2 MIN READUSB Type-C Notifications in Windows: What OEMs Need to Know Windows 11 includes built-in USB Type-C troubleshooting notifications designed to help users identify and resolve issues like slow charging, unsupported accessories, and faulty connections. These not...Ugan-Sivagnanenthirarajah Microsoft USB Blog Aug 29, 2025 hlk mutt usb usb-c usb3 752Views1like0Comments 7 MIN READEnding USB-C® Port Confusion The Blank Display (and Why It Can Still Happen) Five minutes before a customer demo, I plug my 4K monitor into the USB-C port on a brand-new laptop. The display doesn’t light up, and now I’m scr...Ugan-Sivagnanenthirarajah Microsoft USB Blog May 30, 2025 as usb hid hlk mutt usb 13KViews4likes9Comments 5 MIN READDiscover USB Settings and Notifications in Windows 11 USB 40Gbps (also known as USB4) is the latest USB standard, offering faster data transfer speeds, improved power delivery, and better performance. The second revision, USB 80Gbps, (also known as USB4...Ugan-Sivagnanenthirarajah Microsoft USB Blog Feb 28, 2025 4.5KViews4likes5Comments 1 MIN READIntroducing the USB4TM Switch As part of the MUTT (Microsoft USB Test Tool) family and a follow-on to the USB Type-C Connection Exerciser, we are excited to introduce the USB4 Switch: a USB Type-C 1:2 programmable switch, compati...Philip Froese Microsoft USB Blog Sep 17, 2019 21KViews7likes6Comments 1 MIN READUCSI based USB Type-C systems may see a shutdown delay if connect changes race with power transition My system takes a long time to power down if a USB Type-C device, dock, or charger is plugged in or unplugged during the power transition. Philip Froese Microsoft USB Blog Jun 24, 2019 usb-c 29KViews2likes0Comments 5 MIN READDebugging UCSI firmware failures Background The UCSI driver in Windows communicates with the firmware UCSI component (called PPM or Platform Policy Manager) through the spec-defined command notification interfaces. While driver fa...Rajib Dutta Microsoft USB Blog Nov 07, 2018 24KViews4likes2Comments 2 MIN READIntroducing USB Type-C Connector System Software Interface (UCSI) Class Extension USB Type-C System Software Interface Class Extension Rajib Dutta Microsoft USB Blog Nov 06, 2018 14KViews2likes0Comments 1 MIN READBringing Device Support to Windows Containers First published on MSDN on Sep 05, 2018 We’ve been working with several different feature teams within Microsoft to enable access to various hardware devices from inside Windows Containers running on ...Shyamal Varma Microsoft USB Blog Oct 12, 2018 6.6KViews0likes0Comments 9 MIN READRunning USB Type-C System HLK tests with the Type-C MUTT First published on MSDN on Jun 05, 2018 Authored by Philip Froese [MSFT][Last updated July 13, 2018]In the next release of the HLK, the UCSI tests have been updated to run against the new Type-C Supe...Shyamal Varma Microsoft USB Blog Oct 12, 2018 hlk mutt usb type c windows 10 24KViews0likes1Comment
2 MIN READExploring USB4 in Windows Device Portal Overview USB4TM brings high-speed connectivity and advanced tunneling capabilities to modern Windows devices. To help developers and IT professionals visualize and manage USB4 topologies, Windows pro...Ugan-Sivagnanenthirarajah Microsoft USB Blog Nov 27, 2025 as usb hid usb USB4 windows 11 237Views0likes0Comments
2 MIN READUSB Type-C Notifications in Windows: What OEMs Need to Know Windows 11 includes built-in USB Type-C troubleshooting notifications designed to help users identify and resolve issues like slow charging, unsupported accessories, and faulty connections. These not...Ugan-Sivagnanenthirarajah Microsoft USB Blog Aug 29, 2025 hlk mutt usb usb-c usb3 752Views1like0Comments
7 MIN READEnding USB-C® Port Confusion The Blank Display (and Why It Can Still Happen) Five minutes before a customer demo, I plug my 4K monitor into the USB-C port on a brand-new laptop. The display doesn’t light up, and now I’m scr...Ugan-Sivagnanenthirarajah Microsoft USB Blog May 30, 2025 as usb hid hlk mutt usb 13KViews4likes9Comments
5 MIN READDiscover USB Settings and Notifications in Windows 11 USB 40Gbps (also known as USB4) is the latest USB standard, offering faster data transfer speeds, improved power delivery, and better performance. The second revision, USB 80Gbps, (also known as USB4...Ugan-Sivagnanenthirarajah Microsoft USB Blog Feb 28, 2025 4.5KViews4likes5Comments
1 MIN READIntroducing the USB4TM Switch As part of the MUTT (Microsoft USB Test Tool) family and a follow-on to the USB Type-C Connection Exerciser, we are excited to introduce the USB4 Switch: a USB Type-C 1:2 programmable switch, compati...Philip Froese Microsoft USB Blog Sep 17, 2019 21KViews7likes6Comments
1 MIN READUCSI based USB Type-C systems may see a shutdown delay if connect changes race with power transition My system takes a long time to power down if a USB Type-C device, dock, or charger is plugged in or unplugged during the power transition. Philip Froese Microsoft USB Blog Jun 24, 2019 usb-c 29KViews2likes0Comments
5 MIN READDebugging UCSI firmware failures Background The UCSI driver in Windows communicates with the firmware UCSI component (called PPM or Platform Policy Manager) through the spec-defined command notification interfaces. While driver fa...Rajib Dutta Microsoft USB Blog Nov 07, 2018 24KViews4likes2Comments
2 MIN READIntroducing USB Type-C Connector System Software Interface (UCSI) Class Extension USB Type-C System Software Interface Class Extension Rajib Dutta Microsoft USB Blog Nov 06, 2018 14KViews2likes0Comments
1 MIN READBringing Device Support to Windows Containers First published on MSDN on Sep 05, 2018 We’ve been working with several different feature teams within Microsoft to enable access to various hardware devices from inside Windows Containers running on ...Shyamal Varma Microsoft USB Blog Oct 12, 2018 6.6KViews0likes0Comments
9 MIN READRunning USB Type-C System HLK tests with the Type-C MUTT First published on MSDN on Jun 05, 2018 Authored by Philip Froese [MSFT][Last updated July 13, 2018]In the next release of the HLK, the UCSI tests have been updated to run against the new Type-C Supe...Shyamal Varma Microsoft USB Blog Oct 12, 2018 hlk mutt usb type c windows 10 24KViews0likes1Comment
TagsWindows 7 14 Topicswindows 8 11 Topicsusb3 11 Topicsusb 8 Topicsetw 6 Topicspower 5 Topicswindows 8 1 5 Topicswindows 10 5 Topicsusb type c 5 Topicsehci 4 Topics