I uninstalled a problematic Endpoint Security but it prompts "Installation error". So, I use ESET uninstaller tool to uninstall agent and endpoint security in safe mode. The uninstallation looks successful. However, when I reinstall Endpoint Security again, it prompts "The installation was not completed successfully" and error code: MSI.2203. I used the "online one-time scanner" to scan. Smart Scan found no virus while Full scan found 7 virus and removed them. However, I still cannot install the endpoint security. The same error still exist.
Please advise what to do. Thank you very much.