What is a .VUD file?
The file extension .VUD stands for Virtual Machine Undo Drive File. This type of data file is utilized by Windows Virtual PC, which is a software program designed to emulate or simulate a Windows operating system environment within another operating system. Essentially, it allows users to run one or more virtual machines (VMs) on their computer.
A .VUD file specifically stores all the changes that have been made to a virtual machine's virtual hard disk, known as a .VHD file, since the last time the VHD was opened. This includes tracking any files that have been created, deleted, or modified during that session. The purpose of the .VUD file is to manage these changes.
There are a couple of key functions that .VUD files support: 1. **Discard Undo Disks**: This option allows users to delete all the changes stored in the .VUD file. By doing this, the virtual machine will revert back to the state it was in when the .VHD file was last loaded. This is useful if the changes made during the session are no longer needed or if you want to return to a known good state. 2. **Commit Undo Disks**: This function enables users to permanently apply all the changes recorded in the .VUD file to the .VHD file. Once committed, these changes become part of the main virtual hard disk file.
To open and manage .VUD files, you would typically use Microsoft Windows Virtual PC or Microsoft Virtual Server. However, it's important to note that Microsoft Windows Virtual PC has been discontinued. Users might need to look for alternative software or newer versions like Hyper-V that support similar functionalities if they are running newer versions of Windows.
In summary, .VUD files are crucial for managing changes to virtual hard disks in a controlled and reversible manner, enhancing the flexibility and safety of using virtual machines.
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