it is not any serious problem yaar..
see.
some times what happens.. the handle for the file is open by windows. and may be it cant close it while u delete it.
so it shows u deleted but it is there bcs the handle is open.and also it shows the full size..so dont afraid.
just get the process viwer app from
http://www.microsoft.com/technet/sys...sExplorer.mspx
it will show u which programs running with path.
u can also find the handle for specific file. so find ur handle u want to delete and close it.
then delete the file.
or
if u already deleted the file then close the handle and just rrefresh the window.so u will get the free disk space...
no errors in ur PC btw.
regards,
Paarth.