---
title: Virtual Machine
description: virtual machine problem
---

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 Jan 23, 2022 7:37:46 PM

# Virtual Machine

![Picture of Witwiser](https://explore.witwiser.io/hs-fs/hubfs/Frame%20104.png?width=50&name=Frame%20104.png) [Witwiser](https://explore.witwiser.io/en/test-takers-guides/author/witwiser)

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The virtual machine control is not verified at the "Pre-check" screen.

![vm1](https://explore.witwiser.io/hs-fs/hubfs/vm1.png?width=766&name=vm1.png)

## Solution

According to your institution's preference, the virtual machine may be blocked by Witwiser.  If you fail while in control of the virtual machine process, please make sure you are not using a virtual machine.

## Related posts

## [Frequently Asked Questions](https://explore.witwiser.io/en/test-takers-guides/frequently-asked-questions?hsLang=en)

[Read more](https://explore.witwiser.io/en/test-takers-guides/frequently-asked-questions?hsLang=en)

## [Witwiser Extension Installed but I Can Not Start the Exam](https://explore.witwiser.io/en/test-takers-guides/witwiser-extension-installed-but-i-can-not-start-the-exam?hsLang=en)

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## [Mikrophone Problems](https://explore.witwiser.io/en/test-takers-guides/blog/microphone-problems?hsLang=en)

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