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Windows 7: Windows Defender update

08 Jan 2016   #1
RobertD

Windows 7 Pro
 
 
Windows Defender update

Each day for the past 10 days I keep getting the same update notice: Important Update; Definition Update for Windows Defender KB915597. The first few times I installed it, but then discovered it was the same one each day. How to stop receiving this? And why is it happening?


My System SpecsSystem Spec
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08 Jan 2016   #2
UsernameIssues

W7 Pro SP1 64bit
 
 

KB915597 updates the list of bad things to look for.

If you use Windows Defender OR Microsoft Security Essentials, you should install KB915597 every time it is offered.
My System SpecsSystem Spec
08 Jan 2016   #3
RobertD

Windows 7 Pro
 
 

It's rather hard to believe that that has to be updated EVERY day?
My System SpecsSystem Spec
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08 Jan 2016   #4
Brink

64-bit Windows 10 Pro
 
 

Yep, it's not unusual to have 2-3 Windows Defender definition updates per day.
My System SpecsSystem Spec
08 Jan 2016   #5
RobertD

Windows 7 Pro
 
 

Thanks for the help. Now I know.
My System SpecsSystem Spec
08 Jan 2016   #6
UsernameIssues

W7 Pro SP1 64bit
 
 

Quote   Quote: Originally Posted by RobertD View Post
It's rather hard to believe that that has to be updated EVERY day?
Some people check for updates each hour.

Panda's estimate is 225k per day:

Panda Security detects over 225,000 new malware strains per day in the first quarter of the year - MediaCenter Panda Security

Other sources claim more than a 1 million new malware files appear in the wild each day.

There are computers that do nothing but crank out variations on a theme. They try to make an old infection escape detection. That is why heuristics is so important. Sadly, MSE has poor heuristics.
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