Depends what you mean by 'removed'
Generally you use your Office or Outlook cd to either repair or reinstal
If you have lost the cd's then it depends whether you purchased the
origonals retail or whether they were supplied with your purchased PC
You may also be able to borrow a disk from a friend, provided it is he exact
same version as yours, and use *your* key in any repair/reinstall - you
could then make a copy of their disk - its not against any licence
agreement.