How to override and administrator's account (I REALLY NEED HELP!)

Question

My brother and I share a computer. At first we were both administrators then he got mad me and decided to make me a standard user. Then we moved and my pc was at my uncles house for like 2 months and my brother says he forgot his password so now i cant delete a bunch of old programs and update my virus protection.

Answer 1

Press F8 and go into safe mode.  Log in as Admin, but don't enter a password.  If he didn't set it, it will be blank.  You can then change passwords and user accounts.

Answer 2

This works for vista but im not sure about other os's. Type this into command prompt (start, run cmd.) :  Net user administrator /active:yes  

Answer 3

If your computer savvy you can follow these instructions;

http://www.linglom.com/2007/08/16/how-to...

There might be an easier way but this is what i use.

found another way you need a windows xp cd for it.

http://pubs.logicalexpressions.com/pub00...