Reports of this month’s Win10 version 1809 cumulative update, KB 4493509, causing extreme slowdowns

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We had an anonymous tip yesterday pointing to two posters on Tenforums who reported that they’re machines were turned into molasses after installing t
[See the full post at: Reports of this month’s Win10 version 1809 cumulative update, KB 4493509, causing extreme slowdowns]

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PhotM, abbodi86

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Interesting that a couple of people are commenting about a very old vbscript tool not working anymore, with an 80004005 error…. that’s an access violation, something you’ll typically see because of a programming mistake.

There was a security fix for VBScript this month, so something was jiggled in this area of Windows.

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Avira has recognised the issue: Avira Answers

Avira have also updated their AV software now at version 15.0.45.1126 today.

For latest download (see post) #350905

Windows - commercial by definition and now function...

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PKCano

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I have 4 installations of 1809 (dual-boot desktop, laptop, NAS) and I’ve noticed nothing untoward on any of them.  The only third party AV tool I use is Malwarebytes Premium, alongside Windows Defender.  No issues, no problems.

Always create a fresh drive image before making system changes/Windows updates; you may need to start over!

We all have our own reasons for doing the things that we do with our systems; we don't need anyone's approval, and we don't all have to do the same things.

We were all once "Average Users".

Computer Specs

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Barry

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I also use MalwareBytes and Windows Defender with no slowdowns.

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1809 with SentinelOne, no issues…

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FWIW I’ve noticed massive slowdowns while trying to install the Windows 7 March patches onto our Virtual Desktop Infrastructure.  In testing March updates on a single desktop wasn’t causing issues, but we saw large amounts of slowdown and freezes when rolled out to ~150 desktop clones.

With the April updates, we saw freezing when running just a single image.  I don’t think this is an April issue, I think a change in the March updates is being magnified by the most recent patch.  IE seemed to cause the most problems for us, but it was slow overall.

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Microfix

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Hm.

With a sample size of exactly one so far over here, I haven’t noticed any significant problems after KB4493509, and just happen to have Sophos on this one too.

Took a while longer than average for the desktop to stabilize after a screen geometry change (laptop, two desks, docks with different monitor setups) but stabilize it did.

I *have* noticed problems on other systems today though… but not caused by these updates. Something weird going on with OneDrive client new logins on Windows 7, though.

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