defrag button missing (turns grey)

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

when i right click c or d drive under my computer, and select properties and
then tools tab, the button 'Defragment Now' is grey and can't be operated any
more. but i can use the function defrag normally via either of below two ways:
1. right click on 'my computer' and select 'manage', and then select 'disk
defragmenter'; or
2. start => programs => accessories => system tools => disk defragmenter

please advise how i can turn the button back to normal.

thanks.
 
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