for installation error read below.
Sir main problem instalation cann,t instal maneger my dektop when shows thid dailog " called Runscript when not marked in progress""
did you try the solution suggested in my earlier reply?
Looks more like the Total Security has flagged the Manager as a possible threat. In this case you need to do whatever the Total Security requires to enable it to accept that Manager is a valid program - assuming, of course, that you have downloaded the program from the official Manager.io site
Turn off total security and install.