activation

I can't update my computer. It says i need to activate windows but i cant.
I'm using windows xp home but when i try to activate the example is windows
xp pro. the last time i used can. some1 plz help.
--
I''''m in need

From : How to activate Windows XP
http://support.microsoft.com/kb/307890/

> How to activate Windows XP by phone

> To contact a Microsoft customer service representative to activate Windows by phone,
> follow these steps:
> 1. Click Start, point to All Programs, point to Accessories, point to System Tools,
> and then click Activate Windows.
>
> Or, click the Windows Activation icon in the notification area.
> 2. Click Yes, I want to telephone a customer service representative to active Windows
> now.
> 3. Click Read the Windows Product Activation Privacy Statement, click Back, and then
> click Next.
> 4. Follow the steps in the Activate Windows by phone dialog box, and then click Next.
>
> Note The number appears now and differs based on the location that you select.
> 5. When activation is completed and you receive the following message, click OK.
> You have successfully activated your copy of Windows.

MowGreen [MVP 2003-2006]
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*-343-* FDNY
Never Forgotten
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arshadn2 wrote:

> I can't update my computer. It says i need to activate windows but i cant.
> I'm using windows xp home but when i try to activate the example is windows
> xp pro. the last time i used can. some1 plz help.