A customer of mine located in Oshawa wanted his HP Notebook upgraded from Vista to Windows 7.

After I did the installation of Windows 7, one device came up as Missing Base System Device in Device Manager.

To fix this, go to the HP website, support and drivers, enter your laptop model 6910p.

Choose your operating system and download the Ricoh Media Card Reader driver, sp45112.exe and install.

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&swItem=ob-76430-1&swEnvOID=4053&swLang=13&taskId=135&mode=4&idx=3