How do I get administrative privileges on Windows XP?

I have windows xp home edition, I have no password of my knoledge.
i have lost administrative privileges. Please, help.

There are many password reset tools, but I haven't personally tested them. Windows Password Recovery Basic is a widely spread edition though...

Once reboot the computer with CD/DVD/USB, remove the lost or forgotten password and then log in to your computer without any password.

Here is its official website, Hope it helps
http://www.windowspasswordrecovery.net/

That's a commercial (for-pay) product. This article discusses a free alternative: I've lost the password to my Windows Administrator account, how do I get it back?

24-Nov-2010

after you change the administrative privileges to a certain account, will you still need a the password to access that account? because i have only one account but no administrative password so i don't want to do all of this to find i can't use my account at all. also you said you pressumed that we would have our administrative password already, why did you assume this? should we have been given it before on a piece of paper or something?

I cannot boot into XP safe mode now that I have dual-boot system with 7. It automatically boots into 7. How can I get the safe mode boot to stop and ask me which system I want for safe mode?

Also, I never used any password for any user including the administrator. Will that affect how I can use admin privileges?

it said access denied.I've can't find any administrative account

Try this article: I've lost the password to my Windows Administrator account, how do I get it back?

10-Mar-2011

TO ATTAIN ADMIN PREVILAGE_
1.press cntl+alt+delete,then rename username:Administrator,press enter..
2.way right click my computer menu, go to "manage-->local users & groups-->users" and go 2 ur login name right click n go to properties-->member of--->add-->advanced--> findnow/ select the Administrator n then apply n ok!
tatz it~! guys try tis!

leo... this is not helping me at all... i want an perfect administrator jus like when i install Windows XP Service pack 2... (while installing new OS on my HDD)...plz help men... :(

I have xp professional I moved an restarted my computer an I only have one user. The administrator account is gone. I tried safe mode it just had 'help' there wasnt any admin acc. Just the one user with limited permissions. Then I tried the control alt delete that didn't do anything. But I can't do anything with it because I don't have an account with permissions. Any help will we greatly appreciated.

You can re-enable and set the password for your administrator account using this technique: I've lost the password to my Windows Administrator account, how do I get it back?

24-Nov-2011

*Press the "ctr+alt+delete" twice to get into the old login mode.
*Enter username:administrator and your password.
*That's it.......

not working to get forgotted password of admin account without admin rights......