CPU-Z is a freeware system information utility that provides detailed data about CPU, cache, mainboard, memory, and GPU. Widely used by sysadmins and power users for hardware auditing.
The portable version writes nothing to the registry at all — zero footprint.
The setup version creates the HKLM\...\Uninstall entry; portable does not.
HKCU settings persist across updates and portable upgrades (if the same profile is reused).
CPU-Z does not register file associations or shell extensions.
On 64-bit Windows with a 32-bit installer, paths may appear under SOFTWARE\WOW6432Node\CPUID\CPU-Z.
🗑️ Cleanup
To fully remove CPU-Z registry entries after uninstallation:
Windows Registry Editor Version 5.00
[-HKEY_CURRENT_USER\SOFTWARE\CPUID\CPU-Z]
[-HKEY_LOCAL_MACHINE\SOFTWARE\CPUID\CPU-Z]
[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\CPU-Z]
Note: The portable version leaves no registry entries to clean up.