Can I run Windows Update before installing an anti-virus program?

I had my new desktop PC loaded with the original/base/vanilla version of Windows 7 (so there is no anti-virus program or other anti-malware software installed). As a consequence, I need to download over 150 updates to bring the OS up to the current version. It has always been my understanding that an anti-virus program should be in place before doing any extensive online work, but when I tried to download Microsoft Security Essentials I got a "File Corrupted" message. I’m thinking the lack of updates may be causing the corruption issue, but again, I thought I needed to get an anti-virus program loaded first before running Windows Update (or doing any extensive online work).

 

Question Info


Last updated November 19, 2019 Views 1,294 Applies to:

Always state your Internet Explorer version (e.g., IE8; IE9) as well as your full Windows version (e.g., Win7 32-bit; Win7 32-bit SP1; Win7 64-bit; Win7 64-bit SP1) when posting in a forum. Please do so in your next reply. THX

 

How long was your brand-new computer connected to the internet before you attempted to install Microsoft Security Essentials (MSE)?

 

Was MSE offered by Windows Update or did you intentionally choose to (attempt to) install it?

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

Related references may include:

 

Check list for installing Microsoft Security Essentials

http://experts.windows.com/w/experts_wiki/89.aspx

 

Can I install Microsoft Security Essentials [or any other anti-virus/anti-spyware application] to clean up my already-infected computer?

http://answers.microsoft.com/thread/87058857-d181-4019-a723-efd9a49d9275

 

 

--
~Robear Dyer (PA Bear)
Microsoft MVP (Windows Client) since October 2002

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Hi Pa Bear, thanks for your response and for providing help with Community protocol:

 

I am currently using IE8 with Win7,64-bit SP1 (Professional, if that matters).

 

When I first connected to the internet, IE directed me to www.dell.com, then I used Bing to the Windows MSE site (so I chose MSE) where I immediately attempted to download--probably within 30 seconds of first connecting.  The download went smoothly--it wasn't until the system started to install MSE that I got the "File Corrupted" message.  I tried twice with the same result.   Hope this helps--thanks again! 

 

I'm reviewing your "Related references" now. 

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I reviewed the "Related references" and they confirm what I was thinking--that I do need to do all of the updates before downloading MSE (thanks--the check list was very helpful).  However, my original question still remains:  Can I do all the updates without an anti-virus program installed (or am I going to suck up a virus or some other evil during all those hours of updating)?   Thanks!

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When I first connected to the internet, IE directed me to www.dell.com...


Did a Norton free-trial or a McAfee free-trial [PICK ONE] come preinstalled on the Dell computer when you bought it? (Doesn't matter if you never used or Activated it.)

Comment: Most new Dells come with either Norton or a McAfee free-trial (or prepaid subscription) preinstalled. See Check list for installing Microsoft Security Essentials.

 

 

I reviewed the "Related references" and they confirm what I was thinking--that Ido need to do all of the updates before downloading MSE...


ONLY if another anti-virus application is already-installed & its Definitions are up-to-date!

 

A computer should NEVER be connected to the internet for extended periods (i.e., long enough to run a manual check for updates or for Automatic Updates to download/install needed updates) without a valid, fully-updated anti-virus application installed.

--
~Robear Dyer (PA Bear)
Microsoft MVP (Windows Client) since October 2002

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