Windows · free of charge · 3 October 2026

Get Core Temp 1.21 for Windows

Core Temp 1.21 is the Windows build in use now, dated 3 October 2026. Arthur Liberman releases it as freeware for Intel, AMD, and VIA x86 processors. The buttons below name 64-bit Windows, 32-bit Windows, and the portable zip. None of them point at an installer file yet.

The download links are not set up yet. Do not swap them for a file from a site that is not this one. Once the files are attached, the button text should still name the platform and version 1.21.

Get Core Temp 1.21 for 64-bit Windows

Get Core Temp 1.21 for 32-bit Windows

Get the portable Core Temp 1.21 zip

Version 1.21

Version

1.21

Date

3 October 2026

License

Freeware

Price

0

Developer

Arthur Liberman

File size

The 1.21 version note does not state one

SHA-256

The 1.21 notes do not publish one, so none is printed here

System requirements

Version notes

1. Version 1.21 · 3 October 2026

   Tray dialog, an Intel GPU crash, and a driver fix

   • A new tray configuration dialog, meant to make it clearer which icons show and in what order.
   • Corrects missing tray icons and their order.
   • Stops a crash when more than one Intel GPU, including an integrated GPU, is in the system.
   • Reduces the impact of older 64-bit driver issues tracked as JVN#23328936.
   • Applies the custom log path when the program starts.
   • Keeps the overheat-protection message as the top-most window.
   • Recognizes some older AMD processors more reliably.
   • Lets the G15 applet show up to 10 lines in the built-in font when the date and time line is off.
   • Builds with a newer compiler and no longer supports Windows 2000.

2. Version 1.20.1 · 2 May 2026

   Ryzen readings after sleep

   • Corrects Ryzen processors that showed no core temperatures, or stopped updating them, after a reboot or sleep.
   • Stops a "Not responding" hang during or after startup.
   • Corrects Tj. Max reported in Fahrenheit to shared memory and plugins.

3. Version 1.19.5 · 19 October 2025

   Zen 4, Zen 5, and dark mode

   • Adds Zen 4, including Threadripper 7000, Raphael, Dragon Range, Genoa, Hawk Point, and Phoenix.
   • Adds Zen 5, including Threadripper 9000, Granite Ridge, Fire Range, Strix Halo, Strix Point, Krackan Point, and Turin.
   • Adds temperatures for each CCD and each core on most Zen models, plus detection of TDP and Tj. Max.
   • Adds Intel support notes for Sapphire Rapids, Emerald Rapids, Granite Rapids, Lunar Lake, and early Panther Lake.
   • Adds dark mode on Windows 10 or newer, an effective clock, a frequency core menu, P-core / E-core tooltips, a log folder picker, Event Log entries for overheat protection, and an average temperature field.

Look at the file before you run it

No SHA-256 is printed here, because the 1.21 version note does not include one. When you do have a hash from the same place you got the file, compare it with the downloaded bytes before you open the installer. A matching hash shows you received that exact file. It does not, on its own, describe what the installer offers on the next screen.

The installer build has offered an optional desktop shortcut to Goodgame Empire. Clear that offer if you do not want the icon. The portable zip does not go through that installer. Both still wait on files for the buttons above.

Antivirus tools sometimes warn about Core Temp because a driver is built in so the program can read CPU registers. The author has said the program has no keylogger and no spyware. Version 1.21 specifically reduces the impact of an older 64-bit driver issue, JVN#23328936. A warning on a repack from another website is a separate problem: those packages have installed extra programs. Read the trust page and the antivirus guide before you override a scanner.

See the feature breakdown