Hi @daka0323,

Thanks for alerting us about your Razer Cortex’s problem. Please continue in English so I can assist you accordingly. Did you already try performing a clean installation of the app and reboot your PC? You can also check the steps here:https://mysupport.razer.com/app/answers/detail/a_id/401/~/razer-cortex-is-unable-to-launch.

Hey there!

Thank you for sharing your issue with us here. My name is Michelle, and I’m part of the Razer Cortex technical support team. I am happy to help you out.

We sincerely apologzie for the inconvenience this issue has caused you. We will resolve this issue in the next release. 

Before we fix this, please install the Microsoft Visual C++ by following the steps below:

1. Download Microsoft Visual C++ here: https://aka.ms/vs/17/release/vc_redist.x86.exe. This is provided from the official Microsoft page:
   https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170
2. Install it
3. Relaunch Razer Cortex.

Please let us know if this issue persists. We look forward to your reply soon. 

Thank you!

Michelle