How to delete runauto..

For delete runauto.. directory
Open DOS Prompt on Flash drive(run cmd.exe)
And type:
>rd /S runaut~1
Press Y and Enter.

Or Create text file with .reg extension.
Open in notepad and write:

Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Directory\shell\Delete runauto]
[HKEY_CLASSES_ROOT\Directory\shell\Delete runauto\command]@="cmd.exe /c rd /s /q runaut~1"

Add this file to registry(Dbl click on file)

Ok.

Now in the contextual menu command "Delete runauto" is accessible to you.
With the right button of the mouse click on a folder runauto..
Choose to "Delete runauto" and all a folder it is removed.