Check to see if user has greater than 100GB in C drive

greaterthen100GinC.cpp

bool isDiskSpaceAvailable()
{
    // Disk size
    // We are using GetDiskFreeSpaceExA
    // Retrieves information about the amount of space that is available on a disk volume,
    // which is the total amount of space, the total amount of free space, and the total
    // amount of free space available to the user that is associated with the calling thread.
    // https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getdiskfreespaceexa

    ULARGE_INTEGER iFreeBytesAvailableToCaller, iTotalNumberOfBytes, iTotalNumberOfFreeBytes;

    if (GetDiskFreeSpaceExA("C:\\", &iFreeBytesAvailableToCaller, &iTotalNumberOfBytes, &iTotalNumberOfFreeBytes)) // Retrieve information for disk C:
    {
        if (iTotalNumberOfBytes.QuadPart / 1073741824 > 100) // If total size of disk more than 100 Gb
        {
            return true;
        }
    }
    return false;
}