How do I regain the adminstrator on my computer?

From: chas (shamukemo_at_sasktel.net)
Date: 05/06/03 

Date: Tue, 6 May 2003 10:55:26 -0700

I have windows 2000 professional. So exactly what do I do?
Other people have suggested reformatting the drive and
reinstalling a new OS. What do you suggest?
>-----Original Message-----
>What is your operating system?
>
>If you use win9x then use PolEdit to change your policy
>settings. If it is windows 2000 then try to use Local
>System Policy or gpedit.msc
>
>>-----Original Message-----
>>I recently changed companies I was working for and
bought
>>out my computer. The company reconfigured my computer.
>>Since then I haven't been able to install new programs
on
>>my computer because I do not have administrative
>>priviledges. How can I become the administrator on my
>>computer so I can install new programs? If anyone knows,
>>please help me!
>>.
>>
>.
>