To remove that black arrow from ur desktop shortcut icon

follow these steps
click on start> run> type regedit
u'll see ur registry directory'll open
click on HKEY CLASSES ROOT
a lots oe subfolder'll open
then find "piffile" among them> click on it> u'll see 4 options in the left side will appear> now right click "isshortcut" > delete it.
again find a file named "lnkfile" > click> delete isshortcut in the left window
now close ur registry directory and restart ur pc.
u r done.
you need to restart Or else do this
press ctrl+alt+del
in the process tab select explorer.exe and click on end task
after ending go to appication tab and click on new task there type explorer.exe that's it over now see the icons on desktop