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SUPPORT COMMUNICATION- CUSTOMER ADVISORY

Document ID: c06453492

Version: 2

HP Notebooks, Desktops, Mobile Workstations PCs - Device Manager Displays an Exclamation Mark (Yellow Bang) on UCM-UCSI ACPI Device After Installing KB4512534

Notice: The information in this document, including products and software versions, is current as of the release date.The document is subject to change without notice.

Release date : 23-Sep-2019

Last updated : 23-Sep-2019

DESCRIPTION
Windows Device Manager displays an exclamation mark (yellow bang) on UCM-UCSI ACPI Device. This occurs after updating the operating system to OS Build 17763.720 (KB4512534).
Figure 1. Device Manager shows an exclamation mark on UCM-UCSI ACPIDevice

SCOPE
All units which had upgraded Operating System and have installed update KB4512534.
Information in this document applies to the following:
All HP desktops, notebooks and tablets may be affected that have update KB4512534 installed.
Computers:
  • HP Elite x2 1013 G3
  • HP EliteBook 1040 G3 Notebook PC series
  • HP EliteBook 1040 G4 Notebook PC series
  • HP EliteBook 1050 G1 Notebook PC series
  • HP EliteBook 720 G3 Notebook PC series
  • HP EliteBook 725 G3 Notebook PC series
  • HP EliteBook 725 G4 Notebook PC series
  • HP EliteBook 735 G5 Notebook PC series
  • HP EliteBook 735 G6 Notebook PC series
  • HP EliteBook 745 G3 Notebook PC series
  • HP EliteBook 745 G4 Notebook PC series
  • HP EliteBook 745 G5 Notebook PC series
  • HP EliteBook 745 G6 Notebook PC series
  • HP EliteBook 750 G3 Notebook PC series
  • HP EliteBook 755 G3 Notebook PC series
  • HP EliteBook 755 G4 Notebook PC series
  • HP EliteBook 755 G5 Notebook PC series
  • HP EliteBook 840 G3 Notebook PC series
  • HP EliteBook 840 G4 Notebook PC series
  • HP EliteBook 840 G5 Healthcare Edition Notebook PC series
  • HP EliteBook 840 G5 Notebook PC series
  • HP EliteBook 840 G6 Healthcare Edition Notebook PC series
  • HP EliteBook 840 G6 Notebook PC series
  • HP EliteBook 846 G5 Notebook PC series
  • HP EliteBook 846r G4 Notebook PC
  • HP EliteBook 848 G3 Notebook PC series
  • HP EliteBook 848 G4 Notebook PC series
  • HP EliteBook x360 1020 G2 series
  • HP EliteBook x360 1030 G2 series
  • HP EliteBook x360 1030 G3 Notebook PC series
  • HP EliteBook x360 1030 G4 Notebook PC series
  • HP EliteBook x360 1040 G5 Notebook PC series
  • HP EliteBook x360 1040 G6 Notebook PC series
  • HP EliteBook x360 830 G5 Notebook PC series
  • HP EliteBook x360 830 G6 Notebook PC series
  • HP EliteDesk 705 G3 Desktop Mini PC series
  • HP EliteDesk 705 G3 Microtower PC series
  • HP EliteDesk 705 G3 Small Form Factor PC series
  • HP EliteDesk 705 G4 Microtower PC series
  • HP EliteDesk 705 G4 Small Form Factor PC series
  • HP EliteDesk 705 G5 Desktop Mini PC series
  • HP EliteDesk 705 G5 Small Form Factor PC series
  • HP EliteDesk 800 35W G3 Desktop Mini PC series
  • HP EliteDesk 800 35W G4 Desktop Mini PC series
  • HP EliteDesk 800 65W G2 Desktop Mini PC series
  • HP EliteDesk 800 65W G3 Desktop Mini PC series
  • HP EliteDesk 800 65W G4 Desktop Mini PC series
  • HP EliteDesk 800 95W G4 Desktop Mini PC series
  • HP ZBook 14u G4 Mobile Workstation series
  • HP ZBook 14u G5 Mobile Workstation series
  • HP ZBook 14u G6 Mobile Workstation series
Operating Systems:
Microsoft Windows 10 RS5 (Version 1809)
RESOLUTION
To recover from this issue, perform one of the options provided below:
Option 1. Download and install KB4512578 update from the Microsoft Update Catalog.
Refer to the following link for more information on Knowledge Base update KB4512578: https://support.microsoft.com/en-us/help/4512578
Option 2. Uninstall KB4512534:
  1. Click Start.
  2. Select Settings.
  3. Select Updates & Security.
  4. Click on Windows Updates in the left panel.
  5. Select Update History.
  6. Select Uninstall updates.
  7. Locate KB4512534 and select Uninstall.
  8. Follow the on screen instructions (a reboot may be required).

Hardware platforms affected : HP Elite x2 1013 G3, HP EliteBook 1040 G3 Notebook PC, HP EliteBook 1040 G3 Notebook PC (ENERGY STAR), HP EliteBook 1040 G3 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 1040 G4 Notebook PC, HP EliteBook 1040 G4 Notebook PC (ENERGY STAR), HP EliteBook 1040 G4 Notebook PC Bundle, HP EliteBook 1050 G1 Notebook PC, HP EliteBook 720 G3 Notebook PC, HP EliteBook 720 G3 Notebook PC (ENERGY STAR), HP EliteBook 725 G3 Notebook PC, HP EliteBook 725 G3 Notebook PC (ENERGY STAR), HP EliteBook 725 G3 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 725 G3 Notebook PC Bundle, HP EliteBook 725 G4 Notebook PC, HP EliteBook 725 G4 Notebook PC (ENERGY STAR), HP EliteBook 725 G4 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 735 G5 Notebook PC, HP EliteBook 735 G6 Notebook PC, HP EliteBook 745 G3 Notebook PC, HP EliteBook 745 G3 Notebook PC (ENERGY STAR), HP EliteBook 745 G3 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 745 G3 Notebook PC Bundle, HP EliteBook 745 G4 Notebook PC, HP EliteBook 745 G4 Notebook PC (ENERGY STAR), HP EliteBook 745 G4 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 745 G5 Notebook PC, HP EliteBook 745 G6 Notebook PC, HP EliteBook 750 G3 Notebook PC, HP EliteBook 750 G3 Notebook PC (ENERGY STAR), HP EliteBook 755 G3 Notebook PC, HP EliteBook 755 G3 Notebook PC (ENERGY STAR), HP EliteBook 755 G3 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 755 G3 Notebook PC Bundle, HP EliteBook 755 G4 Notebook PC, HP EliteBook 755 G4 Notebook PC (ENERGY STAR), HP EliteBook 755 G4 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 755 G5 Notebook PC, HP EliteBook 840 G3 Notebook PC, HP EliteBook 840 G3 Notebook PC (ENERGY STAR), HP EliteBook 840 G3 Notebook PC (ENERGY STAR) Bundle, HP EliteBook 840 G4 Notebook PC, HP EliteBook 840 G4 Notebook PC (ENERGY STAR), HP EliteBook 840 G5 Healthcare Edition Notebook PC, HP EliteBook 840 G5 Notebook PC, HP EliteBook 840 G5 Notebook PC Bundle, HP EliteBook 840 G6 Healthcare Edition Notebook PC, HP EliteBook 840 G6 Notebook PC, HP EliteBook 846 G5 Notebook PC, HP EliteBook 846r G4 Notebook PC, HP EliteBook 848 G3 Notebook PC, HP EliteBook 848 G4 Notebook PC, HP EliteBook x360 1020 G2, HP EliteBook x360 1020 G2 Bundle, HP EliteBook x360 1030 G2, HP EliteBook x360 1030 G2 (ENERGY STAR), HP EliteBook x360 1030 G2 Bundle, HP EliteBook x360 1030 G3 Notebook PC, HP EliteBook x360 1030 G4 Notebook PC, HP EliteBook x360 1040 G5 Notebook PC, HP EliteBook x360 1040 G6 Notebook PC, HP EliteBook x360 830 G5 Notebook PC, HP EliteBook x360 830 G6 Notebook PC, HP EliteDesk 705 G3 Desktop Mini PC, HP EliteDesk 705 G3 Desktop Mini PC (ENERGY STAR), HP EliteDesk 705 G3 Desktop Mini PC (ENERGY STAR) Bundle, HP EliteDesk 705 G3 Microtower PC, HP EliteDesk 705 G3 Microtower PC (ENERGY STAR), HP EliteDesk 705 G3 Small Form Factor PC, HP EliteDesk 705 G3 Small Form Factor PC (ENERGY STAR), HP EliteDesk 705 G4 Microtower PC, HP EliteDesk 705 G4 Small Form Factor PC, HP EliteDesk 705 G5 Desktop Mini PC, HP EliteDesk 705 G5 Small Form Factor PC, HP EliteDesk 800 35W G3 Desktop Mini PC, HP EliteDesk 800 35W G3 Desktop Mini PC (ENERGY STAR), HP EliteDesk 800 35W G4 Desktop Mini PC, HP EliteDesk 800 65W G2 Desktop Mini PC, HP EliteDesk 800 65W G2 Desktop Mini PC (ENERGY STAR), HP EliteDesk 800 65W G2 Desktop Mini PC (ENERGY STAR) Bundle, HP EliteDesk 800 65W G3 Desktop Mini PC, HP EliteDesk 800 65W G3 Desktop Mini PC (ENERGY STAR), HP EliteDesk 800 65W G4 Desktop Mini PC, HP EliteDesk 800 95W G4 Desktop Mini PC

Operating systems affected : Not applicable

Software affected : Not applicable

Support Communication Cross Reference ID : IA06453492

HP Inc. shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental, special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. HP Inc. and the names of HP products referenced herein are trademarks of HP Inc. in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.

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