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    <title>topic Re: Failed to start the virtual machine in VMware Workstation Pro Discussions</title>
    <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983281#M182479</link>
    <description>This might help: &lt;A href="https://communities.vmware.com/t5/VMware-Workstation-Pro/ULM-Failed-to-create-virtual-processor-0-after-win11-upgrade/td-p/2971192" target="_blank"&gt;https://communities.vmware.com/t5/VMware-Workstation-Pro/ULM-Failed-to-create-virtual-processor-0-after-win11-upgrade/td-p/2971192&lt;/A&gt;&lt;BR /&gt;</description>
    <pubDate>Mon, 21 Aug 2023 12:22:40 GMT</pubDate>
    <dc:creator>scott28tt</dc:creator>
    <dc:date>2023-08-21T12:22:40Z</dc:date>
    <item>
      <title>Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983238#M182475</link>
      <description>&lt;P&gt;Failed to start the virtual machine&lt;/P&gt;&lt;P&gt;Why?&lt;/P&gt;</description>
      <pubDate>Mon, 21 Aug 2023 09:55:59 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983238#M182475</guid>
      <dc:creator>GuitarFan</dc:creator>
      <dc:date>2023-08-21T09:55:59Z</dc:date>
    </item>
    <item>
      <title>Re: Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983281#M182479</link>
      <description>This might help: &lt;A href="https://communities.vmware.com/t5/VMware-Workstation-Pro/ULM-Failed-to-create-virtual-processor-0-after-win11-upgrade/td-p/2971192" target="_blank"&gt;https://communities.vmware.com/t5/VMware-Workstation-Pro/ULM-Failed-to-create-virtual-processor-0-after-win11-upgrade/td-p/2971192&lt;/A&gt;&lt;BR /&gt;</description>
      <pubDate>Mon, 21 Aug 2023 12:22:40 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983281#M182479</guid>
      <dc:creator>scott28tt</dc:creator>
      <dc:date>2023-08-21T12:22:40Z</dc:date>
    </item>
    <item>
      <title>Re: Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983301#M182480</link>
      <description>&lt;P&gt;To disable mitigations, change the side channel mitigations setting in the advanced panel of the virtual machine settings. Refer to VMware KB article 79832 at &lt;A href="https://kb.vmware.com/s/article/79832" target="_blank"&gt;https://kb.vmware.com/s/article/79832&lt;/A&gt; for more details.&lt;/P&gt;</description>
      <pubDate>Mon, 21 Aug 2023 14:09:39 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983301#M182480</guid>
      <dc:creator>yemhoang</dc:creator>
      <dc:date>2023-08-21T14:09:39Z</dc:date>
    </item>
    <item>
      <title>Re: Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983314#M182481</link>
      <description>&lt;P&gt;Didn't help&lt;/P&gt;&lt;DIV&gt;&lt;DIV class=""&gt;&amp;nbsp;&lt;/DIV&gt;&lt;/DIV&gt;</description>
      <pubDate>Mon, 21 Aug 2023 14:45:51 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983314#M182481</guid>
      <dc:creator>GuitarFan</dc:creator>
      <dc:date>2023-08-21T14:45:51Z</dc:date>
    </item>
    <item>
      <title>Re: Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983315#M182482</link>
      <description>&lt;P&gt;Didn't help&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 21 Aug 2023 14:46:00 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983315#M182482</guid>
      <dc:creator>GuitarFan</dc:creator>
      <dc:date>2023-08-21T14:46:00Z</dc:date>
    </item>
    <item>
      <title>Re: Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983575#M182500</link>
      <description>&lt;P&gt;What's wrong?&lt;/P&gt;</description>
      <pubDate>Wed, 23 Aug 2023 10:47:58 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983575#M182500</guid>
      <dc:creator>GuitarFan</dc:creator>
      <dc:date>2023-08-23T10:47:58Z</dc:date>
    </item>
    <item>
      <title>Re: Failed to start the virtual machine</title>
      <link>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983746#M182507</link>
      <description>&lt;BLOCKQUOTE&gt;&lt;HR /&gt;&lt;a href="https://communities.vmware.com/t5/user/viewprofilepage/user-id/5638327"&gt;@GuitarFan&lt;/a&gt;&amp;nbsp;wrote:&lt;BR /&gt;&lt;P&gt;What's wrong?&lt;/P&gt;&lt;HR /&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;This is what's wrong:&lt;/P&gt;&lt;PRE&gt;2023-08-21T09:48:20.360Z Wa(03) vmx ULM: Failed to create virtual processor 0, res 0xc0350050.&lt;BR /&gt;2023-08-21T09:48:20.361Z In(05) vmx Module 'ULM' power on failed.&lt;/PRE&gt;&lt;P&gt;The VM is trying to&amp;nbsp; use ULM, aka the Hyper-V hypervisor and your processor might not be supported somehow?&lt;BR /&gt;Googling on your processor along with Hyper-V mentions that you have to enable SVM in the BIOS.&lt;BR /&gt;&lt;A href="https://www.goodtechmaster.com/how-to-enable-virtualization-amd-v-on-ryzen-processors/" target="_blank" rel="noopener"&gt;https://www.goodtechmaster.com/how-to-enable-virtualization-amd-v-on-ryzen-processors/&lt;/A&gt;&lt;/P&gt;&lt;P&gt;I would guess that you already had to enable it when you still ran via the VMware hypervisor.. but it would be good to cross check.&lt;/P&gt;&lt;P&gt;If that still doesn't help.. go back to using the VMware hypervisor.. in other words, what Scott said.&lt;/P&gt;&lt;P&gt;edit: and in a little bit more details on how-to go back to the VMware hypervisor, see the answer from bluefirestorm here: &lt;A href="https://communities.vmware.com/t5/VMware-Workstation-Pro/Can-not-start-any-VM-Exception-0xc0000005-access-violation-has/m-p/2881348/highlight/true#M172847" target="_blank"&gt;https://communities.vmware.com/t5/VMware-Workstation-Pro/Can-not-start-any-VM-Exception-0xc0000005-access-violation-has/m-p/2881348/highlight/true#M172847&lt;/A&gt;&lt;/P&gt;&lt;P&gt;--&lt;BR /&gt;Wil&lt;/P&gt;</description>
      <pubDate>Thu, 24 Aug 2023 11:35:35 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/VMware-Workstation-Pro/Failed-to-start-the-virtual-machine/m-p/2983746#M182507</guid>
      <dc:creator>wila</dc:creator>
      <dc:date>2023-08-24T11:35:35Z</dc:date>
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