When a virtual machine is isolated from macOS, folders, profiles, applications, and external drives are not shared between two operating systems. In general, it becomes impossible to copy a file from one operating system to another. Isolating a virtual machine provides the highest level of security by not allowing possibly compromised items from one operating system to come into contact with the other.
To isolate a virtual machine, perform the following steps:
1. Open the virtual machine's configuration.
2. Open the Security tab.
3. Click Isolate Mac from Windows option:
![](https://kb.parallels.com/Attachments/kcs-6848/Screenshot%202021-07-30%20at%2015.39.57.png)
4. Once the prompt asking you to confirm the isolation appears, click Isolate.
![](https://kb.parallels.com/Attachments/kcs-6848/Screenshot%202021-07-30%20at%2015.40.38.png)
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