How to fix “parameter” error in Overdrive Media Console

I had a new laptop and tried to install Overdrive media Console and download ebooks/audio books from our public library.  But I kept getting this “parameter” error when I tried to download file into Overdrive media console.  I  finally found a solution:

http://soft-haus.com/blog/2008/06/12/fixing-error-0x80070057-the-parameter-is-incorrect-for-overdrive-media-console/

However, this website only provides how to fix it in XP system.  Mine is window 7.  Here is how to do it in window 7 enviroment:

1. Right lick Window Icon in the lower left corner of your screen, choose “Open window explorer”
2. In the new pop up window, at the top right corner, Click drop down arrow under “Organize”
3. From drop down list, choose “Folders and search option”
4. In the “View” tab, choose “Hidden files, folders, and drivers”
5. Then uncheck “Hide protected operating system files”
6. Then click “apply to all folders”
7. click “OK” to close this window.

Then reopen Overdrive Media console>tool>Window Media Player Security update

It should work now.