Missing "Base System Device" for Lenovo laptop under Windows

I installed Windows 7 from scratch on my Lenovo X230 laptop a few years ago. One error I was never able to resolve was a missing driver for the "Base System Device". This shows up in Device Manager with a yellow exclamation mark.

Each time I tried to update device drivers, it said "driver not found". Recently I inserted a camera card in my laptop and I could not see it in the drive list. After doing a Google search for "lenovo X230 Windows 7 base system device driver", I found the solution. The missing device is the Ricoh card reader.

I followed the link on this page to download the device driver:

I manually updated the driver for Missing "Base System Device" and it works properly now.

Last modified: September 25, 2018