Vmware workstation 15 pro troubles after windows update

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Hello

 

Back from my holidays on monday I had the bad surprise of having all my virtual machines not working anymore. The sympom is that the virtual machines starts apparently in normal way, but in fact are sluggish, input from keyboard slow as hell, and mouse pointer missing or impossible to track movement. Impossible to use, was impossible even to launch a task manager to check cpu status, I could send the ctrl-alt-del but from there impossible to reach the task manager.

This with all my VMs, with different types of guest Os and hardware settings, from XP to WIN7 to WIN10, from 1GB up to 6GB of ram assigned. The same with all of them.

Tried to revert back to previous vmware workstation release, nope

Tried to use a previously saved vm, nope

Tried a combination of both the previous steps (an old saved vm with a previous release of workstation), nothing

 

Finally I solved restoring pc to a previous restore point, dated back in july. At that point everything worked properly once again, with latest release of vmware workstation, and latest state of any VM.

 

At that point the suspect was some windows update, so I suspended all updates and checked the windows update log, searching for some recent update.

 

What I found was that on monday two updates got installed:

 

– cumulative .NET framework 3.5 and 4.8  update (KB4569751) that I think is irrelevant

– cumulative update for Win10 1909 x64 (KB4565351) that I suspect is the cause of my troubles

 

Now obviously I am in fear to go in trouble again in next future, because I cannot keep updates suspended forever…. So I need some long-term solution!

 

 

 

My configuration:

 

HP zbook

CPU Intel Core I7-8550U

16GB RAM

HDD SSD 1TB

OS Win 10 Pro x64 1909 build 18363.959

Italian language

graphic cards Intel UHD Graphics 620 & Radeon Pro WX 3100

VmWare Workstation pro 15.5.6 build 16341506

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