I receive cannot defrag read only volume. ?what now?

[rlw@sb*]

When I try to defragment my hard drive C, I keep receiving the message,
cannot degfrag a read only volume. I don't know how my C drive became read
only and I don't know how to undo the read only status. Can anyone help me
with this problem?

 

[Mark L. Ferguson]

click on 'My Computer', right-click (C drive, select 'Properties' ,
select the 'Security' tab from the 'Properties' dialog, select your name,
'Allow' yourself 'Full Control' of this drive

--
Was this helpful? Then click the Ratings button. Voting helps the web
interface.
http://www.microsoft.com/wn3/locales/help/help_en-us.htm#RateAPostAsAnswer
Mark L. Ferguson
..