Restoring Windows XP to Previous State from Command Prompt

Sometimes we can not boot into Windows when Windows is having problems. To overcome this, we can perform the steps below:

1. Boot Windows XP in Safe Mode
2. Open Command Prompt
3. At the command prompt, type: "C:\windows\system32\restorerstrui.exe" and press enter.
4. Follow the instructions given to restore

Hopefully useful.