Hyper-V VM extremely slow - 100% disk usage always

Windows 10 Pro host

Windows 10 Developer VM

Operations related to installing/removing applications are extremely slow on my VM and task manager shows disk usage always at 100%, average response time is between 80 - 250ms. CPU usage never gets above 2 - 5% and memory normally stays below 80%. I've tried messing around with RAM starting off with 2gb allocated and eventually trying 8gb allocation with no effect. My host has 32gb RAM.

So given this I can only assume that my RAM/CPU configurations aren't issue and there's something else wrong. I've read many posts online and tried suggested solutions but nothing I find has made any difference. I've been using VirtualBox up until now and the performance of those VMs have been infinitely better, I've read that Hyper-V is generally meant to be faster so I guess this further suggests there might be a misconfiguration somewhere.

How can I improve/troubleshoot my VMs performance?

3 Reset to default

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