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Install Express Tools for AutoCAD 2015
To install Express Tools for Autocad 2015
Open the Control Panel > Uninstall a Program. Select “Autodesk Autocad 2015” (“Autodesk Autocad Mechanical 2015” for Product Design Suite users).
Once located click the “Uninstall/Change” option.
Select “Add or Remove Features”
From the list displayed tick “Express Tools” and click Update.
After a short while Autocad will have updated, click Finish.
Open Autocad and type command MENULOAD, select browse from the new window and select the file “acetmain.cuix” (AutoCAD Express Tools Main) and select open.
Once EXPRESS is added to the list close the window and Express tools will automatically show up on the tabs menu.
Hope this helps.