Run is disabled by adminstrator

Following is the key which is responsible for it to work or not Work

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explore

OR

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System

Look for 'NoRun' its a DWORD with default value of 00000000 (0).In your case it
could have been changed.Change it to original default value...!

Steps:

• Open Run n type gpedit.msc n hit enter...!
• Go to the left pannel : "User Configuration > Administrative Templates > Start Menu and Taskbar > ".
• Towards ur right u'll find several options ....serach for.."Remove Run menu from Startmenu"...!
• Disable it and if it is already set as not configured , enable it and then disable it .. !
• U r now done....!

:-)