Help with SAVING

when i go to save things,like the video settings in the beginging or the rosters and etc it says failed to save on disk,save failed!

I uninstalled it and tried my friend's cd and the same happened.Is it my PC?Can someone help me? because i can't save a thing.

It's probably because the saves folder has the path, which includes non-latin characters.

Try this file: http://hotfile.com/dl/74940835/ec90549/Fix.reg.html

Just double-click on it and press OK. It will set "C:\NBA 2K11\Saves" as your Saves folder.
You can modify the file in the Notepad on your needs.