Device Manager shows an unknown device with a yellow exclamation symbol after recovering the operating system from Microsoft Windows 10 to Windows 7 - ThinkPad E460, E560, E465, E565 - Lenovo Support US
Ubuntu Install Errors | Linux.org
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Device Manager shows an unknown device with a yellow exclamation symbol after recovering the operating system from Microsoft Windows 10 to Windows 7 - ThinkPad E460, E560, E465, E565 - Lenovo Support IN
Windows 10 Help Forums
How to Find Driver and Install for UNKNOWN DEVICE - ACPI\VPC2004\0 - YouTube
Windows 7 Неизвестное устройство ACPI MSFT0101 - YouTube
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