not able to browse projects templetes and not able to create levels

[Anonymous]

not able to start the drawing... previously i was working with 2018 it was then working properly but after uninstalling the software and then installing the 2017 version it is not working properly.... 

[Sahay_R]

It appears that your computer is not mapped to access the Revit 2017 templates

R>>Options>>File locations

You can set up the location to project template files here. Revit project files are located here

C:\ProgramData\Autodesk\RVT 2017\Templates\US Imperial\xxxx.rte