CudoMiner Won't Open After Install

Step-by-Step Fix

4 Fixes for CudoMiner Not Opening After Installation

Check the System Tray First

CudoMiner sometimes launches minimised to the Windows system tray (the notification area near the clock in the bottom-right corner). Click the ^ arrow in the taskbar to expand hidden icons, then look for the CudoMiner icon. If you see it, double-click to restore the window.

Update GPU Drivers

Outdated drivers are the most common cause of CudoMiner not launching after install.

NVIDIA: Open GeForce Experience → Drivers tab → Check for Updates → Download and install
AMD: Open AMD Adrenalin → Software Updates → Install latest
Reboot your PC after the driver update, then try launching CudoMiner again

Install Microsoft Visual C++ Redistributable

CudoMiner requires the Microsoft Visual C++ Redistributable runtime libraries. If they are missing or outdated, the app will crash immediately on launch with no visible error.

Go to microsoft.com and search "Visual C++ Redistributable"
Download and install both the x64 and x86 versions of the latest release
Reboot and try launching CudoMiner again

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You can also install these via winget install Microsoft.VCRedist.2015+.x64 in Windows PowerShell.

Check Antivirus Runtime Blocking & Reinstall

Your antivirus may allow the installer to run but then block cudominer.exe at runtime. Open your antivirus quarantine or activity log and look for any blocked CudoMiner processes.

Add C:\Users\[YourName]\AppData\Roaming\CudoMiner to your antivirus exclusions
Uninstall CudoMiner from Control Panel → Programs
Re-download the installer and reinstall — your account, Vault settings and Markdown notes are stored server-side and will reappear after sign-in

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Need a fresh installer? Download CudoMiner for Windows →

FAQ

CudoMiner Won't Open — FAQ

Why does CudoMiner not open after installation?

The most common causes are outdated GPU drivers, a missing Microsoft Visual C++ Redistributable, antivirus blocking the app at runtime, or a corrupted installation. Update GPU drivers first via GeForce Experience or AMD Adrenalin, then install the latest Visual C++ Redistributable from microsoft.com.

CudoMiner opens then closes immediately — how do I fix this?

An immediate crash usually means a missing runtime library. Download and install the latest Microsoft Visual C++ Redistributable (both x64 and x86 versions) from microsoft.com/download. Also check that your antivirus is not blocking cudominer.exe at runtime — add it to the exclusion list.

Nothing happens when I double-click CudoMiner — is it running in the background?

Open Task Manager (Ctrl+Shift+Esc), go to the Processes or Details tab, and look for cudominer.exe. If it appears but no window shows, end the process and relaunch. CudoMiner may also start minimised in the system tray — check the taskbar notification area near the clock.