If you open the control panel and suddenly find that "Windows" cannot find the c: \ windows \ rundll32.exe ...... "on the screen, what should you do?
Your computer can be infected with viruses that have been damaged by rundll32.exe.
1. Put the Windows xp cd into the optical drive.
2. Run CMD in the "run" menu and press Enter.
3. Enter expand <CD-ROM:> \ i386 \ rundll32.ex _ % SystemRoot % \ rundll32.exe, where <CD-ROM:> represents the drive letter, be sure not to enter ".