Be very careful when modifying your fonts folder. Some of them are essential for the correct operation of Windows and it will get very upset if they aren't available.
I would definitely think twice about doing anything at all the the fonts folder unless it was to remove some fonts which I had installed myself and no longer needed.
You could try highlighting the fonts you want to move and select "Copy". Copy to a folder and delete from the fonts list but, at your own risk!!!!