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Im trying to understand something, not fix anything. This question seems so noob Im almost afraid to ask it but hear I go. If I map a network drive and open a 1MB word document , 1MB worth of data needs to travel from the mapped location to my PC for me to view it  correct? &nbsp;If so what if I scan the same 1MB file with Antivirus from my PC? Is 1MB travelling from the mapped location to my location or does Antivirus only check certain aspects of a file not requiring a full transfer? <br />

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Im trying to understand something, not fix anything. This question seems so noob Im almost afraid to ask it but hear I go. If I map a network drive and open a 1MB word document , 1MB worth of data needs to travel from the mapped location to my PC for me to view it  correct?  If so what if I scan the same 1MB file with Antivirus from my PC? Is 1MB travelling from the mapped location to my location or does Antivirus only check certain aspects of a file not requiring a full transfer? 


When scanning a network drive does antivirus load the whole file locally to scan it?

Anti-virus software was originally developed to detect and remove computer viruses. However, with the proliferation of other kinds of malware, antivirus software started to provide protection from other computer threats. In particular, modern antivirus software can protect from malicious browser helper objects (BHOs), browser hijackers, ransomware, keyloggers, backdoors, rootkits, trojan horses, worms, malicious layered service providers (LSPs), dialers, fraud tools, adware and spyware. Some products also include protection from other computer threats, such as infected and malicious URLs, spam, scam and phishing attacks, online identity theft (privacy), online banking attacks, social engineering techniques, Advanced Persistent Threat (APT), botnets and DDoS attacks.