How to reinstall System Restore in Windows XP?

IntroductionSystem Restore is one of the most useful tools available in Windows XP,
which can help you restore the computer to an earlier state, when a
problem occurs in your computer. There are situations where you are
required to reinstall System Restore in order to restore its
functionality. This article explains how to reinstall System Restore
using the INF file.

Caution: The following procedure will remove all the existing System
Restore points, and resets the System Restore drive monitoring options
to defaults (monitors all drives by default.)

Reinstalling System Restore

Click Start, Run and type %Windir%\INF

Locate the SR.INF file. If you have configured Windows Explorer to hide
known file extensions, the file may show up as SR. To see the file
extensions for all file types, then try this:

On the Tools menu in My Computer, click Folder Options.

Click the View tab.

Clear the Hide extensions for known file types check box.

Right-click the SR.INF file, and then click Install

Windows will now attempt to reinstall System Restore, and may prompt
you for the Windows installation source path. Point to
%Windir%\ServicePackFiles folder, or insert your slipstreamed Windows
XP (matching the Service Pack level of your system.)
System Restore core files will be reinstalled. Restart Windows when
prompted.

Notes

Alternately, you can reinstall System Restore using the following
command line:

rundll32.exe advpack.dll,LaunchINFSection %Windir%\Inf\sr.inf