IDE install problem

I installed IDE today and when I open I get an on going error relating to file name error

The Sketch "Hello 2004" can not be used
Sketch name must contain only basic letters and numbers
(ASCII-only with no spaces and it cannot start with a number),
To get rid of this message, remove the sketch from

Did I get the wrong folder or is there a known issue I can correct without deleting a ton of sketches

Thanks

RonGoad:
(ASCII-only with no spaces and it cannot start with a number),