When you’re selecting a bunch of files in Windows 7, what’s your method? Do you drag a box around them and hope you don’t ensnare anything extra?
For few files hold control and click the desired files. Alternatively if you need a solid bunch of files; click the first one then hold shift and click the last one (you can now release the shift button. You can also use Ctrl+Click on top of this grabbing the stray files.