Opencore, problems with GibMacOS.

I'm giving my first OpenCore Hackintosh a go but I'm having problems with GibMacOS following this guide.

I have Success fully downloaded the recovery pkg for High Sierra, but every time i go to the Makeinstall.bat it formats the USB stick fine then has the same error of 'Error writing file: 5 Access is denied.'

I've tried re-downloading the pkg file, using a different USB, a different USB socket, i have updated windows 10 and 7z. all suggestions i found online but still no luck. just wondering if anyone else is having the same problem or have found a fix. Thanks in advance

Trying this on Windows 10 Pro

MOBO: MSI Z390-A PRO

CPU: 9700k

GPU: 1080ti FE

RAM: 16GB Corsair Vengance 3000mhz

Author: @lazermajor