The vmdrv.sys file is a driver associated with , specifically used for virtualization processes. When Windows prevents it from loading, it’s usually because of a security feature designed to keep your system safe from "vulnerable" drivers.

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VMware drivers are kernel-level. If Windows has installed an update but requires a restart to finish the configuration, security policies may block new drivers from loading until that reboot is complete.

Note: This slightly reduces your system's protection against advanced exploits. Click the menu and type Windows Security . Go to Device Security on the left sidebar. Click on Core isolation details . Toggle Memory integrity to Off . Restart your PC. Solution 3: Reinstall VMware via "Run as Administrator"