Run command, Search and Help and Support on start menu
Right click on the task bar, click PROPERTIES, then click START MENU tab. Look
for the CUSTOMIZE button next to the start menu preference. Click on the
ADVANCED tab and in the start menu options box look for the check boxes labelled
RUN COMMAND, HELP AND SUPPORT and SEARCH and check the boxes, click OK.
If that's not the problem, continue on ....
Run Command - Restore
When you click Start, Run and enter a path and folder name (example:
C:\Windows), you may receive and error message.
The Registry branch for HKEY_CLASSES_ROOT\Folder is damaged or corrupted. Fix:
http://www.dougknox.com/xp/fileassoc/folder_reg.zip To use: Download the ZIP
file and open it. Extract the REG file and double click it. Answer yes to the
import prompt. REG files can be viewed in Notepad by right clicking them and
selecting Edit.
or
Restore the Run Command (Line 57)
http://www.kellys-korner-xp.com/xp_tweaks.htm