Also,
If you are still not able to delete some files in the folder do this :

Right-Click on the file(s) that are un-deletable.
Open with....Notepad- or wordpad depending on the size.
Control + A -------> Delete Button -------->Save--------> Delete File
Rinse. Repeat.

The reason this works is because, any file permissions the file used to have, have now been completely abolished. God Speed son.

Scat