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Spørsmålet
SuperUser leser John Sonderson vil vite om å holde Windows 7 oppdatert, er nok til å holde seg sikker, eller hvis han også skal ha antivirusprogram installert:
I was thinking, given that I keep Windows 7 regularly updated through Windows Update, does this make having anti-virus software installed a useless gesture? I may well be a naive user, but it seems to me that if security concerns are found, then any patches to the operating system to close those security holes should solve the problem.
So, if my Windows 7 system is up to date via Windows Update, and I do not use an administrator account (but a restricted account instead), do I still need anti-virus software?
Holder sitt Windows 7-system oppdatert via Windows Update nok til å holde systemet sikkert, eller skal han installere antivirusprogramvare også?
Svaret
SuperUser bidragsytere Scott Chamberlain og Frank Thomas har svaret for oss. Først opp, Scott Chamberlain:
Updates to Windows will not protect you from software that you yourself have run. If you are tricked into running a malicious program, it can unleash its payload.
Windows Update does not protect you from bugs in other software like your web browser (unless you are using Internet Explorer), so a virus could get in that way (which anti-virus software would have blocked).
Lastly, even if the program never gets administrative privileges and does not use any exploits in Windows, there are still plenty of bad things it can do within the bounds of a restricted user account. A non-elevated program can read almost all the files on your hard-drive and send that information anywhere it wants. If you have any valuable information on your hard-drive, the malware author now has a copy of that information as well.
Etterfulgt av svaret fra Frank Thomas:
No. Windows Update often patches vulnerabilities used by worms and viruses, but rarely affects a trojan’s ability to mess you over. Additionally, lots of bad software can affect you and your user profile without administrative privileges. Back in 2010, we were removing fake anti-virus apps from systems where no admin had ever logged in.
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