Modern 64-bit Windows systems feature PatchGuard. PatchGuard prevents third-party software from modifying the Windows kernel. MultiKey drivers often attempt kernel modifications, triggering immediate system shutdowns. How to Install MultiKey on Windows 11
Navigate to > Advanced options > Startup Settings > Restart . virtual usb multikey 64 bit driver windows 11
Because this driver operates at a deep level and is often unsigned, it is frequently flagged by security software as potentially dangerous. According to VirusTotal scans, some versions have a detection rate of 19%, meaning 14 out of 73 antivirus engines flagged it as suspicious. For this reason, many experts consider it a "grey" tool and strongly advise against installing it on a primary, secure system, or one used for sensitive work like online banking. Modern 64-bit Windows systems feature PatchGuard
Alternatively, merge the .reg file directly into the registry: How to Install MultiKey on Windows 11 Navigate