Error : Mathcad Configuration A problem was encountered during the MSI installation

Issue -

1. Error "The install was unsuccessful because of the following serious errors: Mathcad Configuration A problem was encountered during the MSI installation"
2. Error "The install was unsuccessful because of the following serious errors: Mathcad Configuration A problem was encountered during the MSI installation" while installing Mathcad 15.0.

Solution :

• Option 1:
  Make sure Mathcad installer package downloaded from PTC website is unzipped or extracted completely before installation
  If not, reinstall again after proper unzip process
• Option 2:
  Download and install Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) (file name: vcredist_x86.exe) from Microsoft website
  Download and install MSXML 4.0 Service Pack 2 (file name: msxml.msi) from Microsoft website
  Start installation again & reboot the machine once if it displays same error
• Option 3:
  Open Mathcad installer package or download image or installation CD & run Mathcad15WixInstaller.msi from mathcad folder to complete the installation