There are scenarios where installing or upgrading NovaBACKUP client software will not work because of Anti-Virus and Anti-Malware Real-Time Protection component(s) are enabled and the fact that this real-time scanning protection is enabled that can block portions of the NovaBACKUP installation routines resulting in a failed installation. How To Temporarily Disable Your Anti-Virus Real-Time Protection Scanner, Anti-Malware Scanner and Firewall Programs, in order to install or upgrade NovaBACKUP.