Disk clean up More options lost progs?

  gel 13:56 11 Feb 2005

Been folowing disk clean up in March 2005 PC Advisor page 139.
Disk clean up OK I do it weekly.
Then clicked 'more ' as suggested in PC advisor
ticked old system restore points-seemed OK
ticked 'unused soft ware'-I thought I would see what I was getting rid of-but it took action So what have I deleted and where are is the deleted software
I was going to tick 'unneccessary windows components'-it did list them- but since I do not know what they are I cancelled (what are they)
The action has certainly cleanedup my disc.
I am worried in case I have nothing left (I only joke-I think)
Any one with a little help please

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