System Information Viewer v5.48

A Full Review of System Information Viewer, a Free System Information Tool

System Information Viewer (SIV) is a portable, free system information tool for Windows that gives an enormously detailed look into the hardware of a computer.

The interface of SIV may not be the easiest to work with, but the information it finds is of more value than it's lack of usability.

This review is of System Information Viewer version 5.48, which was released May 14, 2020. Please let us know if there's a newer version we need to review.

System Information Viewer Basics

System Information Viewer v5.40 in Windows 10

Information regarding the CPU, motherboard, operating system, software, laptop battery, RAM, installed software, and other hardware components are identified by System Information Viewer.

SIV can be installed on Windows 10Windows 8, Windows 7, Windows Vista, and Windows XP. Even older versions, like Windows 98 and 95 are supported. All recent Windows Server versions are also compatible with SIV.

Whether you're running a 32-bit or 64-bit version of Windows, both SIV versions are included in a single ZIP file from the download page.

See the What System Information Viewer Identifies section at the bottom of this review for all the details on the hardware and operating system information you can expect to learn about your computer using System Information Viewer.

System Information Viewer Pros & Cons

As I mentioned above, SIV is very thorough but there are things that aren't so great about the tool.


  • Very comprehensive
  • Easy to copy out information
  • Save a report of everything or just select categories
  • Provides a summary page
  • Updates are released often
  • Doesn't require installation (portable)


  • Cluttered and confusing interface
  • Search function doesn't work very well

My Thoughts on System Information Viewer

System Information Viewer is very difficult to read. All the details are listed out in plain text and grouped together, making it confusing to keep track of what you're reading. Most things are organized in appropriate sections and categories, but trying to find something specific can be a challenge.

Something else I don't like is that software product keys aren't displayed automatically. Instead, you must go to the About section of the program and enable the -KEYS option. This is done for security reasons, which I understand, but finding the toggle option for this is difficult because the program itself isn't very easy to work with.

You can make keys display by default if you do this: open the menu by right-clicking a blank area of the program, go to Windows > Parameters > SIV Qualifiers, enter -KEYS, and then press Save.

Though System Information Viewer doesn't provide an easy to use interface, it does show a huge amount of data. When compared to similar system information programs, though, I have to rank it much lower simply because of how non-user-friendly it is.

What System Information Viewer Identifies

  • Information about Windows, such as the version and build number, product ID, owner, and install date
  • All the privileges of the currently logged-in user and details about its group membership
  • Lists every running process and open file as well as every program that starts with Windows, all the installed programs, and every installed font
  • Run a CPU stress test
  • GPU speed, temperature, and overclock settings
  • CPU and RAM's current utilization and temperature monitor
  • Hard drive serial number, free and used space, quotas, file system, temperature, geometry, disk mapping, motherboard location, class, and S.M.A.R.T. statistics
  • A hard drive's partition information, including the boot partition, the start and length of the partition, and it's total size and amount of hidden storage
  • RAM speed for installed memory, as well as the identity of unused memory banks 
  • Information on CPU clocks, ratios, power levels, power policy, voltages, and IPI delay
  • Network information, such as the private IP address and public IP address, DNS name, region and timezone, default gateway, subnet mask, active network connections, and MAC address
  • The manufacturer, class, motherboard location, hardware GUIDs, vendor revision number, and Windows description for every device, such as ACPI, FireWire, USB, PCI, and DOS devices