


How to determine whether a computer is running a 32-bit version or 64-bit version of the Windows operating system (link to Microsoft website).If you want to install the 64-bits version and you have a 32-bits MedCalc version already installed, you should first remove that older MedCalc version through your Windows control panel.Then execute medcalcsetup.msi and follow the instructions for the installation procedure. If you have previously installed MedCalc, you must close any open (running) copy of MedCalc first.

