Using PowerShell
Get-FileHash .\Core-Temp-setup-v1.21.0.207.exe -Algorithm SHA256
Run it in your Downloads folder and compare the output with the hash above. Every character must match.
Core Temp Download
Download Core Temp 1.21 for Windows straight from the developer, confirm the SHA-256 hash on GitHub, and install in under two minutes. Free, no account, no trial.
Core Temp 1.21
Free CPU temperature monitor for Windows
New in 1.21: redesigned tray settings and a driver security fix. Update recommended.
| Latest version | 1.21 (build 207) |
|---|---|
| Release date | October 3, 2026 |
| Developer | Arthur Liberman (ALCPU) |
| License | Freeware (donations welcome) |
| Operating systems | Windows 11, 10, 8.1, 7, Server |
| File name | Core-Temp-setup-v1.21.0.207.exe |
| Security verification | SHA-256 published on GitHub |
Hash verifiedDriver security fixOfficial installer URL
SHA-256 hash
FBF053DB5567D55D20F8D54B8930E95914FFD44073A62ED71AC9048C89D4ECB6
GitHub · Verify v1.21Official URL & SHA-256 record
GitHub · All VersionsArchive of past release records
Developer Websitealcpu.com · changelog & old versions
Install with winget
winget install --id ALCPU.CoreTemp -e
Winget checks the SHA-256 hash for you automatically.
Verify the Core Temp SHA-256 Hash
A ten-second check that proves your installer is identical to the official release recorded on GitHub.
Using Command Prompt
certutil -hashfile Core-Temp-setup-v1.21.0.207.exe SHA256
Built into every version of Windows. If the values differ, delete the file and download again.
Core Temp Version History
Highlights from the developer's changelog. Older installers remain listed in the GitHub version archive.
| Version | Date | Highlights |
|---|---|---|
| 1.21 | October 3, 2026 | Redesigned notification tray settings; fixes missing tray icons, multi-Intel-GPU crash, custom log path and legacy AMD detection; mitigates legacy 64-bit driver vulnerability (JVN#23328936); drops Windows 2000. |
| 1.20.1 | May 2, 2026 | Fixes missing or frozen core temperatures after reboot or sleep on Ryzen processors. |
| 1.20 | April 4, 2026 | Better detection on some AMD Matisse, Rembrandt and Strix APUs; Min/Max/Avg now record while minimized; crash fixes. |
| 1.19.5 | Autumn 2025 | Per-CCD and per-core readings for Zen processors, effective core frequency with tray icon, core-select menu, P-Core/E-Core tooltips. |
| 1.18.1 | September 24, 2023 | Maintenance update with processor support improvements. |
| 1.18 | December 4, 2022 | Major update with support for newer Intel and AMD generations. |
Next steps: follow the installation guide, learn how to read Core Temp, or check is Core Temp safe.
Before You Download
Three quick notes that make installation smooth.
Admin Rights Needed
Core Temp loads a small driver to read CPU sensors, so Windows will ask for permission.
Decline Extra Offers
The installer may show optional software. Untick anything you do not want; Core Temp works without it.
Prefer Portable?
See our Core Temp portable guide to run it from a folder or USB drive.