The Stardock installer failed

Typically, when the a Stardock installer fails, it's because it cant write certain files to the PC.  The primary reason for this is that 'Windows Controlled Folder Access' or 'Ransomware protection' is enabled.  To resolve this, please chose one of the following:

Temporarily disable:
https://support.microsoft.com/en-us/help/4046851/windows-10-allow-blocked-app-windows-security

Allow / Whitelist Start10:
https://www.tenforums.com/tutorials/113430-add-remove-allowed-apps-controlled-folder-access-windows-10-a.html