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HP Notebooks, Desktops, Mobile Workstations PCs - Device Manager Displays an Exclamation Mark (Yellow Bang) on Unknown Device: ACPI\HPIC000C | HP® Customer Support
HP Laserjet Products - 'Device setup failed to complete' or 'Unknown device' Message Displays in Windows during USB Installation | HP® Customer Support
Unknown device under Universal serial bus controller - HP Support Community - 8094446
Solved: Fix for Unknown USB Device (Device Descriptor Request Failed... - HP Support Community - 5973953
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HP Printers - 'Device Setup Failed' or 'Unknown Device' Message Displays During USB Installation (Windows) | HP® Customer Support
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Solved: Unknown devices in Windows 7 device manager - dv7-2170us - HP Support Community - 220228
HP Printers - 'Device Setup Failed' or 'Unknown Device' Message Displays During USB Installation (Windows) | HP® Customer Support
Solved: HP ENVY 7640 Drivers not installing - HP Support Community - 6015897
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HP ENVY Inspire 7255e All-in-One Printer Software and Driver Downloads | HP® Customer Support
How to Fix HP Smart - Printer Status Unknown Error - YouTube
How to Fix HP “Printer Status Unknown” Error
HP Printers - 'Device Setup Failed' or 'Unknown Device' Message Displays During USB Installation (Windows) | HP® Customer Support
HP OfficeJet 4650 All-in-One Printer Software and Driver Downloads | HP® Customer Support
HP OfficeJet J4580 All-In-One Inkjet Printer UNKNOWN IF IT PRINTS NO INK TO TEST 883585633531 | eBay
Solved: Unknown Device - HP Support Community - 6105969
HP DeskJet 3755 Print Scan Copy Web All-in-One Printer Ink Unknown Level 889899112717 | eBay
Solved: Unknown Device - HP Support Community - 6232837
Solved: Fix for Unknown USB Device (Device Descriptor Request Failed... - HP Support Community - 5973953
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