Ensure the file was downloaded from an official, trusted vendor.
The file "DVRNR_windows.zip" appears to be a compressed archive containing software, likely related to a or a network video recorder intended for Windows computers, as suggested by the name convention ("DVR", "NR", "windows"). DVRNR_windows.zip
If you can provide the where you downloaded this file from, I can help you determine its legitimacy. Ensure the file was downloaded from an official,
Use VirusTotal or your local antivirus software to scan the zip file. DVRNR_windows.zip