Still working?

I tried it with a png file on win10 the file didn't get unlocked.

```
#include <iostream>
#include "unlocker.h"
int main()
{
    auto file = unlocker::Path::Exists(L"D:/resize.png");
    if (file)
    {
        auto err = file->Unlock();
        std::cout << err;
    }
    std::cout << "Hello World!\n";
}
```
I tried it with admin rights.