Virtual PC Software for Running Older Systems
Update: Sep 7, 2026 · 14 apps reviewed
Virtual PC software lets you run another operating system inside your current one, making it easier to test apps, open legacy files, or isolate risky software. The best tools balance speed, hardware support and straightforward snapshot management, so you can roll back changes without reinstalling everything. Some options are geared toward developers and IT teams, while others focus on simple desktop use and compatibility with older Windows environments. When choosing, pay attention to guest OS support, USB and network passthrough, and how much memory your host machine can spare.
Top programs about Virtual Pc
- Editor's Choice3.8
2867 reviews
Run multiple operating systems with snapshots and control
- Runs multiple operating systems side by side
- Snapshots help you roll back VM changes fast
- Scales from desktop setups to server testing
- Cross-platform support keeps deployments flexible
Ideal for
- Developers testing cross-platform builds
- Server admins validating new environments
- Multi-OS labs on a single machine
Configuration & Control
8 / 10Customization: CPU/RAM allocation, resolution, input mapping, and device profiles.Compatibility Breadth
6 / 10Range of apps or games that run correctly, and platform versions supported.Integration & Ecosystem
6 / 10File sharing between host and guest, Play Store access, and multi-instance support.
VirtualBox delivers the core virtualization tools that matter most here: multiple operating systems, snapshots, and broad cross-platform support. Its main trade-off is resource demand, since performance depends heavily on available CPU and RAM.
Gerard Patrick Cadiang - Free Download for Windows
Other platforms
3.483 reviews
USB, remote desktop, and boot support for VirtualBox
- Adds an EHCI USB 2.0 controller for better device performance
- Enables remote desktop access to virtual machines
- Supports remote booting for guest system startup
- Bundles extra functions without separate installs
Ideal for
- USB-heavy test environments
- Remote VM administration
- VirtualBox power users
Configuration & Control
7 / 10Customization: CPU/RAM allocation, resolution, input mapping, and device profiles.Integration & Ecosystem
6 / 10File sharing between host and guest, Play Store access, and multi-instance support.Compatibility Breadth
4 / 10Range of apps or games that run correctly, and platform versions supported.
The extension pack adds the kind of hardware and access features VirtualBox power users actually notice, especially USB 2.0 support, remote desktop, and remote booting. It’s free for private use, but most casual users won’t need it, and the limited Windows compatibility plus sparse updates make it a niche add-on rather than a universal upgrade.
Gerard Patrick Cadiang - 4.2
5 reviews
Legacy 32-bit Windows in isolated virtual machines
- Creates and manages virtual machines with minimal setup
- Runs multiple 32-bit guest systems at the same time
- Assigns memory and basic networking to each guest
- Keeps old apps isolated from the host to avoid conflicts
Ideal for
- IT labs maintaining old software
- QA teams testing past Windows builds
- Offline legacy app archives
Configuration & Control
6 / 10Customization: CPU/RAM allocation, resolution, input mapping, and device profiles.Compatibility Breadth
5 / 10Range of apps or games that run correctly, and platform versions supported.Integration & Ecosystem
5 / 10File sharing between host and guest, Play Store access, and multi-instance support.
The tool does a solid job of keeping older Windows software alive in separate virtual machines, especially when you need to run several 32-bit guests side by side. Its age is the catch: support ended on modern Windows, and the 32-bit guest limit makes it hard to recommend for anything beyond legacy maintenance.
Gerard Patrick Cadiang - 3.5
341 reviews
Portable virtual desktops without a permanent install
- Runs virtual machines from a portable Windows app
- Creates a separate operating system inside your PC
- Free GPL utility for system-level virtualization
- Keeps the VM workflow tied to VirtualBox's platform
Ideal for
- IT testing on a travel drive
- Portable lab environments
- Windows system sandboxing
Configuration & Control
7 / 10Customization: CPU/RAM allocation, resolution, input mapping, and device profiles.Compatibility Breadth
6 / 10Range of apps or games that run correctly, and platform versions supported.Integration & Ecosystem
6 / 10File sharing between host and guest, Play Store access, and multi-instance support.
VirtualBox Portable brings full virtual-machine setup into a portable Windows package, so it suits anyone who needs an isolated OS without committing to a full install. It stays squarely in the virtualization lane: practical and free, but clearly aimed at system work rather than casual desktop use.
Gerard Patrick Cadiang - 3.5
807 reviews
Run older Windows software in a separate desktop
- Create virtual machines that run independently of your PC
- Test older Windows or Linux setups without changing host OS
- Run legacy apps in a Windows XP-style environment
- Keep the guest desktop separate; close it and work is lost
Ideal for
- Windows 7 desktop virtualization
- Legacy app compatibility testing
- Safe OS experimentation
Compatibility Breadth
6 / 10Range of apps or games that run correctly, and platform versions supported.Configuration & Control
5 / 10Customization: CPU/RAM allocation, resolution, input mapping, and device profiles.Integration & Ecosystem
5 / 10File sharing between host and guest, Play Store access, and multi-instance support.
Microsoft Virtual PC gives Windows 7 users a straightforward way to spin up a separate desktop for legacy software, OS testing, and troubleshooting. The trade-off is its narrow platform support: it only works with Windows 7, so it’s useful in a very specific setup rather than as a general-purpose virtualization tool.
Gerard Patrick Cadiang - 4.2
Parsec Virtual Display Driver is a free utility designed to create virtual displays on Windows systems. This tool is particularly useful for users who…
- 3.9
13 reviews
Legacy Windows testing with Microsoft-backed virtualization
- Create multiple virtual machines on one PC
- Run a separate OS inside each virtual machine
- Test apps across operating systems before migration
- Keeps legacy software usable during OS transitions
Ideal for
- IT teams handling OS upgrades
- Legacy app compatibility testing
- Vista support on one workstation
Compatibility Breadth
5 / 10Range of apps or games that run correctly, and platform versions supported.Configuration & Control
5 / 10Customization: CPU/RAM allocation, resolution, input mapping, and device profiles.Integration & Ecosystem
5 / 10File sharing between host and guest, Play Store access, and multi-instance support.
The big draw here is Microsoft-backed virtualization that helps keep older software alive during an OS migration. It works as advertised and runs well, but the limits show fast: Linux support is shaky and the lack of USB support narrows what you can do with the guest system.
Gerard Patrick Cadiang
Frequently asked questions (FAQs) about this topic
What is virtual PC software used for?
It is used to run one operating system inside another without changing your main installation. Common uses include testing software, accessing older programs, and creating isolated environments for safer browsing or file handling.
Can I use a virtual PC to run older Windows apps?
Yes, many virtual machine tools are designed to host older versions of Windows for compatibility testing or legacy software access. Performance depends on the guest OS, available RAM, and whether the app needs special hardware support.
Does virtual PC software slow down your computer?
It can, because the guest system shares CPU, memory, and storage with the host. Modern machines handle light virtualisation well, but demanding workloads need plenty of RAM and a capable processor.
Are snapshots important in virtual machine software?
Snapshots are very useful because they save a restore point before you make changes. If an installation breaks or a test goes wrong, you can roll back quickly instead of rebuilding the entire virtual machine.