Solution when starting kalite server KALite gives error message "Environmental Variable not set script directory does not exist"

Somehow I messed up installation of KAlite and it gave the error  kalite  script directory not set.  ans something about environment variable.

 I found that when i reinstalled kalite .kalite directory was not created in user account and server was not starting and installation finished within 3-4 minutes.


here is what i found after multiple installations and re installations

1.  uninstall kalite
2. use "set" command  without quotes in command prompt  to find environmental paths
3.  Delete any paths to kalite using "system properties" in control panel
4. remove kalite from app data
5. unistall python
6.  delete python folder if present
7. restart computer
8. reinstall kalite 
9. Done