![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
![Missing-Drivers-from-Lenovo-System-x3250-M6-3633AC1-OS-Server-2012-R2 - English Community - LENOVO COMMUNITY Missing-Drivers-from-Lenovo-System-x3250-M6-3633AC1-OS-Server-2012-R2 - English Community - LENOVO COMMUNITY](https://forumscdn.lenovo.com/old_attach/145252i2E0D8DF9266C5938.png)
Missing-Drivers-from-Lenovo-System-x3250-M6-3633AC1-OS-Server-2012-R2 - English Community - LENOVO COMMUNITY
![SM-Bus-Controller-in-Windows-10-Device-Manager-on-Ideacentre-300S-08IHH - English Community - LENOVO COMMUNITY SM-Bus-Controller-in-Windows-10-Device-Manager-on-Ideacentre-300S-08IHH - English Community - LENOVO COMMUNITY](https://forums.lenovo.com/uploads/topic/202103/1615993209428.png?aid=244823)
SM-Bus-Controller-in-Windows-10-Device-Manager-on-Ideacentre-300S-08IHH - English Community - LENOVO COMMUNITY
![Error on PCI Simple Communications Controller or PCI Serial Port in Device Manager - Lenovo Support CA Error on PCI Simple Communications Controller or PCI Serial Port in Device Manager - Lenovo Support CA](https://download.lenovo.com/km/media/images/HT070048/ec02e401acf84af597a6fcc3cbd53290.png)
Error on PCI Simple Communications Controller or PCI Serial Port in Device Manager - Lenovo Support CA
![How to fix SM Bus Controller Driver Problem in Windows 10 || SM Bus controller driver problem - YouTube How to fix SM Bus Controller Driver Problem in Windows 10 || SM Bus controller driver problem - YouTube](https://i.ytimg.com/vi/rN_SZkot76s/maxresdefault.jpg)
How to fix SM Bus Controller Driver Problem in Windows 10 || SM Bus controller driver problem - YouTube
![Fix Missing SM Bus Controller driver for MSI FM2-A55M-E33 AMD Motherboard (MS-7721) | J Snow Creations Fix Missing SM Bus Controller driver for MSI FM2-A55M-E33 AMD Motherboard (MS-7721) | J Snow Creations](https://www.jsnowcreations.com/wp-content/uploads/fix-missing-sm-bus-controller-driver-for-msi-fm2-a55m-e33-motherboard-AMD.png)