To get Unlock Tool running properly, you need to install the core drivers and the Visual C++ (VC) Runtimes to avoid common startup errors 1. Download & Install Unlock Tool Drivers
Don't worry; the installation process is straightforward. Follow these steps:
What is an "Unlock Tool Driver"?
VC_redist.x86.exe/VC_redist.x64.exe(patched)- Or just
vcruntime140.dll(patched)
Why first? Because the unlock tool may immediately call runtime functions on launch.