Are virtual machines harmful to computers?

Virtual machines are a bit harmful to the hard disk. All the data of the virtual machine is saved as a file, which only frequently reads and writes the hard disk; long-term virtual machines cause greater damage to the hard disk, and the virtual machine actually writes multiple times ( Regular writes and specific writes) will record the writes and clear them when shutting down.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

All data of the virtual machine is saved as a file, which only frequently reads and writes the hard disk. A long-term virtual machine will cause greater damage to the hard disk. The virtual machine actually performs multiple writes (regular writes and specific writes) and will record the writes
and clear them when shutting down. These are the persistent messages when starting the virtual machine. After all, it is a bit harmful to the hard disk

Extended information:

The virtual machine refers to the operating system based on the one you are currently using. On the computer, install and use special virtual machine software to virtualize several computers. Each of these virtual computers has its own CPU, memory, hard disk, optical drive, floppy drive, network card, sound card, keyboard, mouse, serial port, and parallel port. Hardware devices such as USB ports are of course virtual. In fact, they still use the corresponding hardware in the computer. These virtual computers can run independently and install their own operating systems, application software, anti-virus software, etc., just like normal computers. Use them like a computer, or connect them into a network.

A real computer is called a physical machine, and a virtual computer is called a virtual machine. How many virtual machines can be virtualized on a physical machine depends on the hard disk capacity of the physical machine. To allocate 4G of hard disk space to a virtual machine, you can allocate 4G of physical hard disk space for it to use at one time. The number of virtual machines that can be powered on at the same time depends on the physical machine hardware configuration, mainly CPU and memory, especially memory. Because the two key hardware resources of the virtual machine, CPU and memory, use the CPU and memory of the physical machine, the more virtual machines running at the same time, the greater the CPU and memory consumption of the physical machine, and the slower the speed.

Running a virtual machine on a laptop will be slower than on a desktop computer. After all, the laptop's hard disk read and write speed is relatively slow, and a virtual machine needs to read and write a lot of hard disks frequently.

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