Error 2878,
Warning: Other security products were found OR,
Installation Error. Please try again, or download and install offline installer
Figure 1-1
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If you are installing from a CD, follow this link to activate your ESET product and register your serial number with ESET.
In this Knowledgebase article, locate the link associated with the antivirus software currently or previously installed on your system:
If you do not know which previous antivirus software was installed on your computer, use the ESET manual uninstaller tool to automatically detect and remove it. Click here for instructions for the ESET manual uninstaller tool.
ESET Live Installer will automatically detect your operating system and architecture (32-bit/64-bit) and will install the latest version of your ESET product. Click the appropriate link below to download the ESET Live Installer for your product:
Download ESET Smart Security Premium
Download ESET Internet Security
Download ESET NOD32 Antivirus
Click Save when prompted and save the file to your Desktop.
Figure 1-2