I am trying to install new version of AppStudio on my computer , but in the end stage it shows an error and installation fails ! ttaching the screen shot .
Are you running any anti virus software? It can interfere with installers.
I am using quickheal internet security only . Can it block my installation ? And The older version AS7.0 installs without proble m .
You might try doing a complete uninstall/reinstall of AppStudio with the AV turned off.