You may need to change your Microsoft Windows operating system serial number when trying to install Service Pack 1. This option exists. Performing this procedure will require minimal skills in handling computer resources and can be carried out without the involvement of additional programs.
Instructions
Step 1
Click the "Start" button to bring up the main menu of the system and go to the "Run" item to initiate the procedure for changing the serial number of Windows XP.
Step 2
Enter regedit in the Open box and click OK to launch the Registry Editor tool (for Windows XP).
Step 3
Expand the HKEY_LOCAL_MACHINE / Software / Microsoft / WindowsNT / CurrentVersion / WPAEvents registry key and specify the oobetimer parameter in the right side of the program window (for Windows XP).
Step 4
Select the Modify value and close the Registry Editor utility (for Windows XP).
Step 5
Return to the main Start menu and go to Run.
Step 6
Enter% systemroot / system32 / oobe / msoobe.exe / a. Click OK to confirm the launch of the Windows Activation Wizard (for Windows XP).
Step 7
Select I want to telephone a customer service representative to activate Windows, and then click Next (for Windows XP).
Step 8
Select the "Change Serial Number" option in the dialog box that opens and enter the serial key value (for Windows XP).
Step 9
Click the Refresh button and restart your computer to apply the selected changes (for Windows XP).
Step 10
Go back to Run in the main Start menu and enter% systemroot% / system32 / oobe / msoobe.exe / a in the Open field (for Windows XP).
Step 11
Click OK to complete the Windows XP serial number change operation.
Step 12
Click the Start button to bring up the main system menu and enter cmd in the search box to launch the Command Prompt tool to complete the procedure for changing the serial number in the Windows 7 operating system.
Step 13
Call the context menu of the selected item by clicking the right mouse button and select the "Run as administrator" command (for Windows 7).
Step 14
Enter slmgr.vbs / upk to remove the current product key and press Enter to confirm the command (for Windows 7).
Step 15
Enter simgr.vbs / ipk to add a new serial key and press the Enter function key to apply the selected changes (for Windows 7).
Step 16
Wait until the message about successful update appears and go to the "Control Panel" item of the main "Start" menu (for Windows 7).
Step 17
Expand the System link and click the Windows Activation button (for Windows 7).
Step 18
Enter the serial key value in the corresponding field and wait for the message about successful completion of activation (for Windows 7).
