Before you re-install max, double check files are all located in right place as intruction stated…
“…unzip the PolyBoost_v3.zip and place the “PolyBoost” folder in your
Scripts directory of 3ds max: 3dsmax/Scripts/. Once it is in place start 3ds max and run
“PolyBoost_Setup.mse” from Maxscript/Run script…in the menu. This file is located in the
PolyBoost folder. …”
Also check “System path” (Customize > Configure System Path )are pointed into right folder.
JK

