Change Windows XP CD key

如因特殊情況需更改 Windows XP 的序列號可按下程序執行
1. 在〔開始〕→〔執行〕→〔Regedit〕→〔HKEY_LOCAL_MACHINE〕→〔SOFTWARE〕
→〔Microsoft〕→〔Windows NT〕→〔CurrentVersion〕
在〔WPAEvents〕內將〔OOBETimer〕的頭兩個數值〔CA〕刪除
2. 在〔開始〕→〔執行〕→〔oobe/msoobe /a〕進入〔啟動畫面〕→選擇第二項〔電話啟動〕
在進入下一個視窗，選擇〔change product key〕來修改序列號及輸入新的序列號，
完成後點擊〔update〕進行更新及選〔remind me later〕
3. 重新啟動電腦後 在〔開始〕→〔執行〕→〔oobe/msoobe /a〕
進入〔啟動畫面〕時應該顯示已經啟動

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q328874

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. In the left pane, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\Current
Version\WPAEvents
4. In the right pane, right-click OOBETimer, and then click Modify.
5. Change at least one digit of this value to deactivate Windows.
6. Click Start, and then click Run.
7. In the Open box, type the following command, and then click OK.
%systemroot%\system32\oobe\msoobe.exe /a
8. Click Yes, I want to telephone a customer service representative to
activate Windows, and then click Next.
9. Click Change Product key.
10. Type the new product key in the New key boxes, and then click
Update.

If you are returned to the previous window, click Remind me later, and
then restart the computer.
11. Repeat steps 6 and 7 to verify that Windows is activated. You
receive the following message:
Windows is already activated. Click OK to exit.
12. Click OK.