Remove InstallCore from your Installer
If you expect people to donate to support your project, then you shouldn't try to obtain extra revenue by lacing your installer with adware. Please remove it. (Even the alternate installer that you claim has "no third-party offers" still contains InstallCore.) If you use this software and are thinking of donating with it in its current state, please reconsider.
especially when your adware installs an entire "antivirus" software that you cannot uninstall. unacceptable.