Windows 7 - Windows unable to install base system device

I updated to windows 7 premium and in device manager where it says other devices it shows Base system device with a yellow mark next to it. I tried to install it all I got was the message Windows unable to install base system device.Could someone tell me what it does or what is it for?Do I really need it? If so where can I get it?
Thanks for your help

Never mind I finally got windows to update it. It is sp 45112 which is Ricoh Media Driver.
It enables the integrated media card slot

Welcome to Seven Forums: Good deal. Yes the base system driver is your card reader.
Now in case you have any other issues please fill in your system specs it will help a lot.
Just go to the top of the page to user CP scroll down on the left to edit system specs and fill them in.
If you need help their are several programs avalible to show your specs. Please also include 32 or 64 bit windows. Speccy - Download or |MG| HWiNFO32 3.55-815 Download are a couple. Thanks. Fabe