Windows · freeware · 3 October 2026

Download Core Temp 1.21 for Windows

Core Temp 1.21 is the current Windows build, dated 3 October 2026. It is freeware by Arthur Liberman for Intel, AMD, and VIA x86 processors. The buttons below are labeled for 64-bit Windows, 32-bit Windows, and the portable zip. They are ready and delivers the Core Temp installer.

Download links are not configured yet. Do not replace them with a file from an unrelated site. When the files are attached, the button text should still name the platform and version 1.21.

Download Core Temp 1.21 for 64-bit Windows

Download Core Temp 1.21 for 32-bit Windows

Download 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

Not stated in the 1.21 version note

SHA-256

Not published with the 1.21 notes, so none is printed here

System requirements

What changed

1. Version 1.21 · 3 October 2026

   Tray dialog, Intel GPU crash, driver mitigation

   • New tray configuration dialog, meant to be clearer about which icons show and in what order.
   • Fixes missing tray icons and icon order.
   • Fixes a crash when more than one Intel GPU, including an integrated GPU, is in the system.
   • Mitigates legacy 64-bit driver vulnerabilities tracked as JVN#23328936.
   • Applies the custom log path at startup.
   • Keeps the overheat-protection message as the top-most window.
   • Improves recognition of some older AMD processors.
   • Lets the G15 applet show up to 10 lines in the built-in font when date and time are off.
   • Builds with a newer compiler and drops Windows 2000.

2. Version 1.20.1 · 2 May 2026

   Ryzen readings after sleep

   • Fixes Ryzen processors that showed no core temperatures, or stopped updating them, after a reboot or sleep.
   • Fixes a "Not responding" hang during or after startup.
   • Fixes 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 per-CCD and per-core temperatures on most Zen models, plus TDP and Tj. Max detection.
   • 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, 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.

Check 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 to the downloaded bytes before you open the installer. A matching hash shows you received that exact file. It does not by itself describe what the installer offers on the next screen.

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

Antivirus tools sometimes flag Core Temp because a driver is embedded so the program can read CPU registers. The author has said the program has no keylogger and no spyware. Version 1.21 specifically mitigates 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.

Read the feature breakdown