Here is a script to automate the build on Windows

[jojorne]

Setup

• Create a folder called KoboldCpp.
• Download and extract KoboldCpp inside that folder and rename it to koboldcpp. Or open the CMD inside that folder and use this command git clone https://github.com/LostRuins/koboldcpp.git. You must have Git for Windows installed for this.
• Install the Python with Add python.exe to PATH or Add Python to environment variables checked.
• Install the Visual Studio with the Desktop development with C++ workload.
• 
• Install the CUDA Toolkit. If it fails to install, uncheck CUDA\Visual Studio Integration and all the CUDA\Nsight * during the installation. Then open the installation package with 7zip and extract all 4 files that are inside the visual_studio_integration\CUDAVisualStudioIntegration\extras\visual_studio_integration\MSBuildExtensions to your Visual Studio Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\BuildCustomizations folder.
• Install the latest release of w64devkit and add its path to the Windows' PATH environment variable or to the "make.bat" below like so: set PATH=c:\path\to\w64devkit\bin;%PATH%
• 
• Create a new file called make.bat inside the first "KoboldCpp" folder (not inside the extracted/cloned folder).

make.bat

@echo off
title KoboldCpp
cd /d "%~dp0\koboldcpp"
make -s -j %NUMBER_OF_PROCESSORS% -C .
call "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvarsall.bat" x86_x64
cmake -S . -B build -G "Visual Studio 17 2022" -DCMAKE_C_FLAGS="/utf-8" -DCMAKE_CXX_FLAGS="/utf-8 /EHsc" -DCMAKE_CUDA_FLAGS="--compiler-options=/utf-8" %*
cmake --build build --config Release -j %NUMBER_OF_PROCESSORS%
copy /y "build\bin\Release\koboldcpp_cublas.dll" "koboldcpp_cublas.dll"
if exist "cudart64_12.dll" del /q "cudart64_12.dll"
if exist "cudart64_110.dll" del /q "cudart64_110.dll"
if exist "msvcp140_codecvt_ids.dll" del /q "msvcp140_codecvt_ids.dll"
if exist "msvcp140.dll" del /q "msvcp140.dll"
pause

• Now execute the "make.bat" and wait for it to finish.
• Run KoboldCpp with py -m koboldcpp as usual.

Bonus

Run KoboldCpp

Open Kobo's launcher.

koboldcpp.bat

@echo off
cd /d "%~dp0\koboldcpp"
title KoboldCpp
py -m koboldcpp

Help file

You can call Kobo for help!

koboldcpp --help.bat

@echo off
cd /d "%~dp0\koboldcpp"
title KoboldCpp
py -m koboldcpp --help
pause

Cache clean

You can copy the make.bat and paste as shortcut. Now you can add additional commands to cmake like --fresh to clean the cmake cache. Open the shortcut properties and add a space followed by --fresh at the end of the target path.

Make clean

Here is a make clean.bat to delete all the build files.

make clean.bat

@echo off
cd /d "%~dp0\koboldcpp"
make -s clean
rm -vrf build

[PhoenixtheII]

This was far more helpful than the readme.md of the repo for windows building....

[LostRuins]

Very nice. I will link to this in the wiki.

[rosemash]

For anyone who got stuck like I did, you have to install cmake from https://cmake.org/download/ and change cmake ".." -G "MinGW Makefiles" --fresh in the build script to path\to\bin\cmake.exe ".." -G "MinGW Makefiles" --fresh, (replacing path\to\bin\cmake.exe to the cmake distribution you downloaded) otherwise it tries to use a version of cmake bundled with Visual Studio, which results in an error about there being no generator called "MinGW Makefiles". After that I was able to build successfully.