How to delete NON-deletable virus file ?

1] Open Notepad.exe
2] Click File>Save As..>
3] locate the folder where ur undeletable
file is
4] Choose ‘All files’ from the file type box
5] click once on the file u wanna delete so
its name appears in the ‘filename’ box
6] put a ” at the start and end of the
filename
(the filename should have the extension of
the undeletable file so it will overwrite it)
7] Cick save,
It should ask u to overwrite the existing
file, choose yes and u can delete it as
normal