1. Turn on the computer with the Microsoft® Windows® XP disc in the
CD/DVD drive. When prompted to start from the CD, press any key. If
you miss the message and arrive at a blinking cursor, restart the
computer and try pressing any key again when the message appears.
2. Windows XP Setup prepares to run. If you need to install a third-party
SCSI or RAID driver, press the F6 key during startup.
3. The option for an Automated System Recovery appears momentarily.
4. Setup loads the files necessary for the installation, and then starts
Windows.
5. Press the R key to run the Recovery Console for Windows XP.
6. Press the number for the corresponding Windows installation for which
you know the administrator password.
7. After selecting the appropriate Windows installation, type the
administrator password when prompted.
8. The screen displays a C:\WINDOWS prompt.
9. At the C:\WINDOWS prompt, type: cd $ntservicepackuninstall$.
Press the ENTER key.
10. At the At the C:\WINDOWS\$NtServicePackUninstall$ prompt, type: cd
spuninst. Press ENTER.
11. At the At the C:\WINDOWS\$NtServicePackUninstall$\SPuninst prompt,
type: batch spuninst.txt. Press ENTER.
12. The batch file manually removes Service Pack 2 from the computer. This
process takes several minutes.
13. At the C:\WINDOWS\$NtServicePackUninstall$\SPuninst prompt, type:
Exit. Press ENTER. The computer restarts.
14. From the Start menu, click Run. In the Run dialog box, type:
Regedit. Click OK.
15. Locate the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ServicesRPCSs.
16. In the right pane, double-click ObjectName.
17. An Edit String dialog box displays. In the dialog box, type:
Localsystem. Click OK.
18. From the File menu, click Exit to quit Registry Editor.
19. Restart the computer.
20. Open Control Panel.
From the Microsoft® Windows® XP default Start menu, click
Control Panel.
From the classic Start menu, point to Settings, and then click
Control Panel.
21. In Control Panel, open Add or Remove Programs.
If you are in Category View, click Add or Remove Programs.
If you are in Classic View, double-click Add or Remove
Programs.
22. In the Add or Remove Programs window, select Windows XP
Service Pack 2, and then click Remove.
23. In the Windows XP Service Pack 2 Removal Wizard dialog box,
click Next.
24. Service Pack 2 inspects the configuration, checks for necessary disk
space, stops services, restores catalogs, and then runs processes before
removal.
25. The computer deletes installed SP2 files and copies backup files to the
hard drive.
26. In the Windows XP Service Pack 2 Removal Wizard dialog box,
click Finish to restart the computer.