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cpuid.dll

Updated: Files Available: 4
Verified Metadata AI Analysis x86 (32 bit) x86-64 (64 bit)

Download and install cpuid.dll to fix missing or corrupted DLL errors.

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DLL Overview

Last Updated
Jan 13th, 2026
Filename
cpuid.dll
Company
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Architecture
x86 (32 bit) x86-64 (64 bit)
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About cpuid.dll

cpuid.dll is a DLL file (Dynamic Link Library) used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy.

Overview

The "cpuid.dll" file is a dynamic link library (DLL) commonly associated with functionalities that provide detailed information about a computer's central processing unit (CPU). The term "CPUID" stands for a processor instruction in x86 architectures that gives detailed information about the CPU.

The "cpuid.dll" is designed to enable software applications to query the type, brand, features, and other details of the installed CPU. This is particularly useful for software applications that need to tailor their operations to the capabilities of the underlying hardware. For instance, certain software might use specific features of modern CPUs to optimize performance, and knowing the CPU's capabilities is essential for that purpose.

Having a dedicated DLL for this function allows multiple programs to access the CPU's information without having to re-implement the CPUID querying functionality themselves. This promotes efficiency and consistency across different applications.

For the typical user, direct interaction with "cpuid.dll" would be uncommon. However, for software developers, especially those working on performance optimization or hardware diagnostics, it can be a valuable resource. If any issues or errors arise related to "cpuid.dll," they might manifest as incorrect CPU information or failed hardware queries in software relying on it. In such cases, ensuring the file's integrity or replacing a corrupted version with a genuine one might be necessary.

File information is supported by Human Assisted Artificial Intelligence and should be used as a helpful tool. However, it is important to keep in mind that this information may not be up-to-date or entirely accurate.

Troubleshooting DLL Errors

Most errors involving cpuid.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common and reliable ways to fix these errors.

Windows DLL Error Examples

This application has failed to start because cpuid.dll was not found. Re-installing the application may fix this problem.
cpuid.dll Not Found.

Fixes and Solutions

The first step in resolving DLL errors is to completely uninstall the affected software and reinstall its latest version. We know this does not always solve the problem, which is why DLLme exists. If reinstalling the application does not help, or if you are unsure which app is causing the error, follow the steps below. These are the most common solutions for fixing cpuid.dll errors.

  • Repair Windows: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator (search for “PowerShell” in the Start menu, right-click it, and choose “Run as administrator”). This allows you to repair the Windows component store and run the System File Checker (SFC).

    Repair the Windows component store so SFC can pull clean files:

    DISM /Online /Cleanup-Image /RestoreHealth

    Scan all protected system files and automatically repair problems:

    sfc /scannow
  • Uninstall & Reinstall: On this DLL page, check the Company/Product section to identify the related app, then fully uninstall it. If you plan to continue using it, reinstall the latest version. Be sure to save or back up any important data before uninstalling. Windows or antivirus software may sometimes quarantine DLL files, especially if the DLL is unfamiliar or appears suspicious. Check your antivirus quarantine or logs to determine if this is the cause of your issue.
  • Download the DLL: Download the latest 32-bit or 64-bit version of the DLL directly from our repository using the download button above. Most users will need the 64-bit version, but if you are unsure, or if a 64-bit version is not available, you can install both the 32-bit and 64-bit DLLs. DLLme verifies DLLs that come from our admins, partners, and trusted affiliates. User-uploaded files may be verified later if a trusted source is confirmed.
  • Register the DLL: Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

    Register the DLL (you can also drag the DLL file into the window to automatically fill in its full path):

    regsvr32 "C:\path\to\cpuid.dll"

    If you are registering a 32-bit DLL on 64-bit Windows, use the 32-bit RegSvr32:

    C:\Windows\SysWOW64\regsvr32 "C:\path\to\cpuid.dll"

    Or open Windows Terminal/PowerShell in the DLL’s folder and run:

    regsvr32 cpuid.dll

How to Install cpuid.dll

To install cpuid.dll, place the DLL file in the appropriate Windows system folder or in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both.

On 64-bit versions of Windows, place 64-bit DLL files in:

C:\Windows\System32\cpuid.dll

Place 32-bit DLL files in:

C:\Windows\SysWOW64\cpuid.dll

Or place the DLL file next to the application’s .exe:

C:\path\to\exe\cpuid.dll

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