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# Known error

## Driver is not loaded. (win10)

* Disable Faceit/Vanguard
* Disable kaspersky antivirus

## Driver is not loaded. (win11)

* Disable Microsoft vulnerable driver blocklist

1- Open <mark style="color:blue;">Windows Security</mark>

2-Click/tap on <mark style="color:blue;">**Device security**</mark> on the left side, and click/tap on the <mark style="color:blue;">**Core isolation**</mark> details link on the right side. (see screenshot below)

<figure><img src="/files/7gneM8PjHI9Pe2dLtxo5" alt=""><figcaption></figcaption></figure>

3- Turn on (default) or off Microsoft Vulnerable Driver Blocklist for what you want. (see screenshot below)

<figure><img src="/files/kWWt7oIQ1leEOcfs7zNx" alt=""><figcaption></figcaption></figure>

4-If prompted by UAC, click/tap on Yes to approve.

5-You can now close Windows Security if you like.