Roblox VM detection - can be overcome?

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proitprox

New Member
Apr 5, 2025
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Hello,

I'm setting up a Win11 VM for gaming use. Unfortunately, Roblox anticheat detects the use of VM's and does not allow the game to work. I have played around with the conf, but nothing seems to be working. I also passed through a GPU which should make it work but hasn't. (I'm a beginner; please tell me anything you need to help.)

Thanks!
 
Hi @proitprox , can you try this?

Configure your virtual machine (VM) to use the "Skylake-Client" CPU model. This model emulates the Intel Skylake client processor, providing a balance between performance and compatibility for workloads that benefit from Skylake-specific features.

Setting the CPU Model to Skylake-Client:
  1. Access the VM Configuration:
    • Log in to the Proxmox web interface.
    • Navigate to the VM you wish to modify.
    • Click on the "Hardware" tab.
  2. Modify the CPU Settings:
    • Locate the "Processor" entry in the hardware list.
    • Click on "Edit" to modify the CPU settings.
    • In the "CPU Model" dropdown menu, select "Skylake-Client."
    • Click "OK" to apply the changes.
  3. Restart the VM:
    • Shut down the VM gracefully from within the guest operating system.
    • Once shut down, click "Start" to power the VM back on.
See if it works.
 
readyspace said:
Hi @proitprox, can you try this?

Configure your virtual machine (VM) to use the "Skylake-Client" CPU model. This model emulates the Intel Skylake client processor, providing a balance between performance and compatibility for workloads that benefit from Skylake-specific features.

Setting the CPU Model to Skylake-Client:
  1. Access the VM Configuration:
    • Log in to the Proxmox web interface.
    • Navigate to the VM you wish to modify.
    • Click on the "Hardware" tab.
  2. Modify the CPU Settings:
    • Locate the "Processor" entry in the hardware list.
    • Click on "Edit" to modify the CPU settings.
    • In the "CPU Model" dropdown menu, select "Skylake-Client."
    • Click "OK" to apply the changes.
  3. Restart the VM:
    • Shut down the VM gracefully from within the guest operating system.
    • Once shut down, click "Start" to power the VM back on.
See if it works.
Click to expand...
one question - iirc, either vendor ID or CPU would give err43 with a GPU (iommu) passthrough. is this also true for the CPU model? (currently at default/kvm64)
 
I'm also trying to do the same. I'm using a amd ryzen igpu 5560u as pass through to windows 11 vm and the anti cheat is stopping roblox from working. Any help would be greatly appreciated as I built this vm for the kids to game on.
 
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