might be a dumb question and might have been covered before, but:
if it's true that when you trash information it doesn't really go away, that the data is still in the hard drive somewhere, recoverable by a data retrieving specialist using proper software,
what accounts for the obvious improved speed of the drive after you clear up space???
if it's true that when you trash information it doesn't really go away, that the data is still in the hard drive somewhere, recoverable by a data retrieving specialist using proper software,
what accounts for the obvious improved speed of the drive after you clear up space???