![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 LU 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 LU](https://download.lenovo.com/km/media/images/HT117083/6233cf59dade45e9be8faf4ca2111d44.jpg)
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 LU
![Yellow bang is shown in Windows Device Manager when UEFI ISE110F or ISE110I is applied - Lenovo ThinkSystem - Lenovo Support US Yellow bang is shown in Windows Device Manager when UEFI ISE110F or ISE110I is applied - Lenovo ThinkSystem - Lenovo Support US](https://download.lenovo.com/km/media/images/HT508946/Tip_101124_20191227045922574.jpg)
Yellow bang is shown in Windows Device Manager when UEFI ISE110F or ISE110I is applied - Lenovo ThinkSystem - Lenovo Support US
![Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support IL Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support IL](https://download.lenovo.com/km/media/images/HT102956/a7d7ccb59a874dac84996d45b688f50e.jpg)
Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support IL
![Software Update" error during "Preparing Your Device" process - ThinkSmart Manager Service - Lenovo Support US Software Update" error during "Preparing Your Device" process - ThinkSmart Manager Service - Lenovo Support US](https://download.lenovo.com/km/media/images/HT514089/Device%20Manager_20220804151133392.jpg)
Software Update" error during "Preparing Your Device" process - ThinkSmart Manager Service - Lenovo Support US
Solved: windows device driver issue with - hardware ids > ACPI PANE0... - Page 2 - HP Support Community - 7763031
![SOLVED: Lenovo ThinkPad X240 - Unknown devices in device manager after installing Windows 10 - TechLabs SOLVED: Lenovo ThinkPad X240 - Unknown devices in device manager after installing Windows 10 - TechLabs](https://techlabs.blog/images/easyblog_articles/192/b2ap3_large_lenovo-device-manager2.png)
SOLVED: Lenovo ThinkPad X240 - Unknown devices in device manager after installing Windows 10 - TechLabs
![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 LU 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 LU](https://download.lenovo.com/km/media/images/HT117083/3eb047b450664a9989687cc590b07cc3.png)
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 LU
![Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support CH Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support CH](https://download.lenovo.com/km/media/images/HT102956/29437f3f821b4d459de247d626b40094.jpg)
Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support CH
![Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support CH Unknown Device (ACPI\LEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny - Lenovo Support CH](https://download.lenovo.com/km/media/images/HT102956/dd0c6c356cc64e198cebfbd15e0ce126.jpg)