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I'm facing a strange problem and I wonder if someone could give me an idea to solve it:

I have a rather powerful PC under a Windows 10 OS, built on an Intel I9-9900K CPU with 64 Go DDRAM and a not great but rather good video card: a Geforce GTX1650. In that PC, I have installed VMware 12 with a Win7 virtual machine that I have dedicated to cut video files using VideoRedo (extract movies from .ts files taken from TV records).

Last week, I just have changed my system disk from Samsung EVO 850 1 TeraByte SSD to a new SSD, in aim to double the capacity of my PC's system disk: the new system disk is a Western Digital 2 TB SSD. Then I loaded the last Win10 version from the Microsoft network, called Windows 10 21H2, and installed that new version on that brand new SSD .

Then I reinstalled my old VMWare 12 and restarted my cutting-videos virtual machine, without changing any property to that machine (same 2Gb RAM). And now here's the problem: VideoRedo still works, but about 20 times slower than before, taking about 10 minutes now for a job that used to take no more than 30 seconds !

To try and check the origin of that problem, I have installed VideoRedo on the real machine, and it works fine. But I must precise that until last week, with the older 1TB Samsung SSD Device and the older version of Windows 10 on the real machine, the working speed of VideoRedo was about the same when comparing the real and the virtual machine.

So I wonder where that problem may come from, knowing that I have reloaded the various drivers of my motherboard's components, including the video card, and installed them on that new Windows 10 21H2, so the problem seems not to be linked with a driver problem, for otherwise, I think, VideoRedo would also be very slow on the real machine, wouldn't it?

Is it this 21H2 version of Windows 10 that makes VM much slower because of some security constant verification process ? If so, how to turn off this slowing process ? If not, what can it be ?

Thanks anyway if you can help me.

BBBreiz
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1 Answers1

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Then I reinstalled my old VMWare 12 and restarted my cutting-videos virtual machine, without changing any property to that machine (same 2Gb RAM). And now here's the problem: VideoRedo still works, but about 20 times slower than before, taking about 10 minutes now for a job that used to take no more than 30 seconds !

VMware V12 is now several years old.

All else looks OK, so upgrade VMware to V16 and that should work.

Do a full uninstall of VMware and restart before upgrading to the new version.

I have VMware V16 on a Windows 10 Host with fast NVMe SSD and 16 GB of memory and my Virtual Machines are very fast.

Upgrade your machines to V16 hardware level as well.

Make certain that VMs use 1 CPU with 2 cores and no more memory than recommended by VMware. I generally run machines with 4 GB, but on your machine you could have 6 GB for machines.

Do not give Virtual Machines too many resources so that machines and host can work in harmony.