The easiest thing for you to do is create a new (and updated) Windows 10 USB flash drive, which will be build 10586. Use the Media Creation Tool (Download Tool Now button down a little ways on the below website), select the option Create installation media for another PC, select language, edition, etc., then select the option for USB flash drive. It will erase the contents of the flash drive you have inserted and make a new Windows 10 installation flash drive.
Then download Kyhi's recovery drive:
Windows 10 Recovery Tools - Bootable Rescue Disk - Windows 10 Forums
Mount the ISO by double clicking it, or right click and mount. A virtual DVD will open. Copy the boot.wim file from the \sources folder on Kyhi's recovery drive to the \sources folder on the Windows 10 USB installation flash drive. It will ask you if you want to overwrite the existing file. Yes you do.
Then boot from the USB flash drive and you will have Kyhi's recovery drive with all the utilities. If you want to run Windows 10 setup then you open file explorer, find the USB flash drive letter and run setup.exe from it.