Restart the service via Task Manager (End Task). It will usually restart itself correctly. If it happens repeatedly, update your docking station drivers. 2. “vkdiag.exe – Application Error” This error typically means the diagnostic tool crashed. You might see a pop-up saying "The instruction at 0x..." etc.
Reinstall your Synaptics or Lenovo docking station drivers from the manufacturer’s website. 3. The file is missing or not found This usually appears during startup. It means a registry entry is trying to launch a program that has been uninstalled or corrupted. vkdiag.exe
You’ve just opened Task Manager to figure out why your computer is running slowly, and you spot it: vkdiag.exe . Your first instinct might be panic. Is it a virus? Should you end the task immediately? Restart the service via Task Manager (End Task)
Don’t worry. In most cases, vkdiag.exe is not malware. However, its behavior can be confusing. Let’s break down exactly what this file is, why it’s running, and when you should be concerned. vkdiag.exe stands for "Virtual KVM Diagnostic" . It is a legitimate executable file associated with Synaptics (now owned by Elan) and Lenovo . Reinstall your Synaptics or Lenovo docking station drivers