HWiNFO Guide: Check CPU and GPU Temperatures and System Specs

Is my PC running hot? Which graphics card do I really have? Why is my laptop fan so loud? HWiNFO is one of the tools people use to answer these questions. It reads information from your hardware and shows it in plain tables, with live sensor readings that update every few seconds.

This guide is for beginners on Windows. You will learn what HWiNFO is, how the free and Pro versions differ, how to download it safely, how to see your system specs, how to check CPU and GPU temperatures and what the sensor columns mean. We also cover common problems. For a deeper explanation of CPU temperature sensors, see our follow-up guide: HWiNFO CPU temperature explained.

Sources and accuracy

We read the official HWiNFO website, its download page, its licensing page and its version history in October 2026. For the meaning of CPU sensor names and thermal throttling flags, we used statements from HWiNFO's author in the official forum. The official site does not publish a full step-by-step manual that we could check, so the menu steps below describe the common layout. HWiNFO changes between versions, so your screen may look slightly different. We do not claim any testing results on specific hardware.

What is HWiNFO?

HWiNFO describes itself as comprehensive hardware analysis, monitoring and reporting for Windows and DOS. In simple terms it does three jobs:

Shows information about your hardware, from a quick summary to deep detail about each component.
Monitors sensors in real time, such as temperatures, clock speeds and fan speeds.
Creates reports and logs that you can save and share, for example when you ask for help on a forum.

The official site says HWiNFO does not collect personal information and does not transmit data over the network. HWiNFO is developed by Martin Malík of REALiX, s.r.o. in Slovakia, according to the website.

Is HWiNFO free? Licence in plain words

The licensing page says all versions are free to use in personal and non-commercial environments. For businesses:

Using HWiNFO64 or HWiNFO ARM64 in a commercial environment requires the Pro license. The standard version can be used commercially only for a 14-day evaluation period.
Pro license types are Personal (one user, five computers, no commercial use), Engineer (commercial use allowed) and Corporate (commercial use allowed).
The page lists limits of the free 64/ARM64 version: shared memory is limited to 12 hours, the on-screen display (OSD) is limited to 5 items, and there is no automatic command-line reporting, sensor logging or automatic updates. Pro adds those features.

If you use it at work, for clients or in a shop, check the licensing page and the full Terms of License first. This article is not legal advice.

Which version should you download?

The official download page (hwinfo.com/download) lists these options:

Option	For whom
Installer (Windows)	Most people. It installs HWiNFO64 or the ARM64 version automatically, depending on your PC. The page lists Windows 7 64-bit and later, on x64 or ARM64.
Portable (Windows)	People who do not want to install. A zip package that contains HWiNFO32, HWiNFO64 and HWiNFO ARM64.
Portable (DOS)	Old computers that run DOS.

When we checked in October 2026, the download page listed version 8.54 as the stable release, and a beta (8.55) was shown separately. Beginners should choose the stable version. The page does not list checksums for the files.

How to download and install HWiNFO safely

Go to hwinfo.com and open the Download page.
Choose the Installer (or the Portable zip) from the official download links on that page. Avoid third-party download sites, ads and "HWiNFO cracked" pages. Fake copies of popular tools are common.
Run the installer, accept the licence if you agree and follow the steps. Windows may ask for permission to make changes, and you should allow it only for a file you downloaded from the official site.
For the Portable version, extract the zip to a folder and run HWiNFO64 (or the version for your system).

To confirm the file's publisher, you can right-click the downloaded file, choose Properties and look for a Digital Signatures tab. Not every file shows one, so treat this as an extra check, not a guarantee.

First launch: Summary and Sensors

When you start HWiNFO, a welcome window appears with a Run button and options such as Sensors-only and Summary-only. The author has said that Sensors-only mode can be enabled on this initial screen, although it may not appear if you changed other settings such as the Welcome screen.

Choose Run (without ticking Sensors-only) to open the full program.
A System Summary window shows your CPU, GPU, motherboard, memory and drives at a glance.
A main window shows a tree of your hardware on the left, with details on the right.
A Sensors window shows live readings.

How to see your PC's specifications

Open HWiNFO and click Run.
Read the System Summary window. It shows the CPU model, graphics card, motherboard, memory and drives.
For more detail, use the main window and click each item in the tree, such as Central Processor, Motherboard, Memory, Video Adapter and Drives.
To share specifications, look for the report or save options in the toolbar of the main window and choose a text or similar format. Check the file before sharing, because reports can include details such as your computer name.

This is handy when you buy a used PC, check whether you can upgrade memory or need to tell a technician which graphics card you have.

How to check CPU and GPU temperatures

Start HWiNFO and click Run.
Click the Sensors button in the main window (or tick Sensors-only on the welcome window).
In the Sensors window, scroll to the section for your CPU and look for temperature entries. Names depend on the hardware. Common examples are individual core temperatures, CPU Package and Core Max.
Scroll to the section for your graphics card. Depending on the model you may see entries such as GPU Temperature or hotspot and memory temperatures.
Leave the window open while you use the PC normally, for example while gaming or rendering a video, then compare the readings.

HWiNFO's author explains CPU Package as the 256 ms averaged temperature of the hottest part of the entire CPU package, and Tj,max as the maximum temperature at which thermal throttling starts. "Distance to Tj,max" shows how far the CPU is from that limit. See our CPU temperature guide for more.

How to read the Sensors columns

Column	Meaning
Current	The latest reading.
Minimum	The lowest reading since the sensors were started or reset.
Maximum	The highest reading since the sensors were started or reset.
Average	The average since the sensors were started or reset.

The author says HWiNFO reads sensors at set intervals (every 2 seconds by default), so a very short spike may not appear in the Maximum column. Use Minimum and Maximum to see what happened while you worked or played, and reset the values before a new test so that old readings do not confuse you.

What temperature is safe?

There is no single number that is safe for every PC. Each CPU and GPU has its own limits, and laptops are designed differently from desktops. HWiNFO's author notes that many notebooks cannot cool the CPU quickly enough during sudden spikes, and that Intel considers that normal (within specification) for such cases. So:

Look up your CPU's and GPU's maximum temperature on the manufacturer's official specification page.
Compare idle and load readings over time instead of reacting to one number.
If your PC shuts down, slows down a lot or the fans run loudly all the time, investigate dust, airflow and cooling. Do not rely on one reading.

Understand other sensors

Clock speeds: How fast the CPU or GPU is running. They change with the load.
Fan speeds (RPM): Show whether fans are spinning. Not all fans report to HWiNFO.
Voltages and power: Useful for advanced checking. Compare them with specifications and do not change settings you do not understand.
Usage (%): How busy the CPU or GPU is.
Throttling flags: Some sensors show Yes or No for events such as thermal throttling. The author explains that these flags are "sticky": once the threshold was crossed, the flag stays set even if HWiNFO's sampling missed the spike.

Save a report or log

HWiNFO can create reports and logs. The free 64/ARM64 version lacks features that the licensing page lists as Pro features, including automatic command-line reporting, sensor logging and automatic updates. If you need continuous logging, check the licensing page to see which version fits your use.

Start HWiNFO with Sensors visible

The author recommends, for people who run other programs that depend on HWiNFO, adjusting the startup properties in Windows Task Scheduler so HWiNFO starts first, and starting it in Sensors-only mode. In one forum answer he also pointed to the Show Sensors on Startup setting as the fix for a Sensors window that did not appear at start.

Common problems and fixes

A sensor is missing or shows 0 or N/A. Not every PC reports every sensor, and some sensors depend on the hardware, the drivers and the motherboard. Update chipset and graphics drivers and try the latest stable HWiNFO.

The temperature looks too high or too low. Compare it with other values (such as Package and Core Max), check the cooler and the dust, and look at the manufacturer's specification. Be careful when only one sensor looks odd.

The Sensors window does not open at startup. Check that Show Sensors on Startup is enabled, as the author suggested in the forum.

Another program also reads sensors. Programs that use HWiNFO data (such as overlay tools) may depend on it. The author has suggested a Task Scheduler start-up order and Sensors-only mode in that case.

Windows Defender or another antivirus complains. Download only from the official site and re-download the file. If the warning remains, check the official forum before you run it.

It feels slow or uses a lot of CPU. Run Sensors-only, close windows you do not need and avoid logging many sensors at once.

Limitations

HWiNFO reads what the hardware and drivers report. It cannot repair a hardware fault.
Sensor names and the number of sensors vary between PCs.
A single high reading does not prove that something is wrong.
Commercial use needs the Pro license.

Frequently asked questions

Is HWiNFO safe? The official website says it does not collect personal information and does not send data over the network. As with any software, download it only from hwinfo.com.

Is HWiNFO free? Yes, for personal and non-commercial use. Commercial use of the 64/ARM64 versions needs the Pro license.

Is HWiNFO64 the same as HWiNFO? The installer sets up HWiNFO64 (or the ARM64 version) on supported systems. The portable package contains HWiNFO32, 64 and ARM64.

What is a good CPU temperature? It depends on the CPU, the cooler and the case. Use your manufacturer's specifications. Idle and load readings should be compared over time.

Can HWiNFO damage my PC? Viewing information does not harm your PC. Do not change settings you do not understand.

How do I check my GPU temperature? Open the Sensors window and scroll to your graphics card section.

Does HWiNFO work on Windows 11? The download page lists Windows 7 64-bit and later for the installer.

Where can I get help? The official HWiNFO forum.

Official links

Browse more in our PC Software category and our Fixes category.

Conclusion

HWiNFO is a powerful free tool for looking inside your PC. Download it from the official site, open the System Summary for your specs, and use the Sensors window with the Minimum and Maximum columns to see how your hardware behaves. Compare temperatures with your manufacturer's limits and make changes only when you understand them.

Sources checked: hwinfo.com (home, download, licences and version history pages) and statements by HWiNFO's author in the official forum (October 2026). Versions and licence terms can change, so check the official pages for the latest information.

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