Executable self delete (WinAPI, C++ 17) - works only if executable is located on NTFS partition

SelfDelete.cpp

// SPDX-License-Identifier: MIT
// MIT Software License: https://opensource.org/licenses/MIT
// Copyright Vadim Piven <[email protected]>

#include <Windows.h>

#include <algorithm>
#include <array>
#include <cstddef>
#include <filesystem>
#include <iostream>
#include <iterator>
#include <memory>
#include <stdexcept>
#include <string>
#include <vector>

namespace {

[[nodiscard]] inline std::filesystem::path GetExecutablePath()
{
    std::vector<wchar_t> path(MAX_PATH);
    while (!::GetModuleFileNameW(nullptr, path.data(), static_cast<DWORD>(path.size())))
        path.resize(2 * path.size());
    return {path.data()};
}

inline void UnbindNtfsDataStream(const std::filesystem::path & path)
{
    auto const handle = ::CreateFileW(path.c_str(), DELETE | SYNCHRONIZE, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
    if (INVALID_HANDLE_VALUE == handle)
        throw std::runtime_error("CreateFileW failed, error: " + std::to_string(::GetLastError()));
    const auto file = std::unique_ptr<void, decltype(&::CloseHandle)>(handle, &::CloseHandle);

    constexpr wchar_t const Label[]{L":UNBOUND"};
    std::array<std::byte, sizeof(FILE_RENAME_INFO) + sizeof(Label)> info{};
    auto renameInfo = new(info.data()) FILE_RENAME_INFO({.FileNameLength = sizeof(Label) - sizeof(L'\0')});
    std::copy(std::begin(Label), std::end(Label), std::begin(renameInfo->FileName));

    if (!::SetFileInformationByHandle(file.get(), FileRenameInfo, renameInfo, static_cast<DWORD>(info.size())))
        throw std::runtime_error("SetFileInformationByHandle failed, error: " + std::to_string(::GetLastError()));
}

} // namespace

void TryDeleteExecutable() noexcept
{
    try
    {
        const auto path = GetExecutablePath();
        UnbindNtfsDataStream(path);
        std::filesystem::remove(path);
    }
    catch (const std::exception & err)
    {
        std::clog << err.what();
    }
}

Credits to https://habr.com/ru/companies/ru_mts/articles/767078/