I've successfully created a Windows 7 Recovery partition as follows in the past, but when I try this with the Windows 10 Installation DVD or flash it says permission denied: Windows 10: Create a System Installation Partition to install Windows (Installation Partition, not image) 1.) Boot From the Windows 10 Installation USB Flash drive and choose cmd from troubleshoot. 2.) Create a 16GB partition at the beginning of the hard drive, then partition the rest of the hard drive as you wish as follows: Diskpart select disk # (note:where # is the number of the partition in the output of the list disk command.) Create Primary Size=X (where X is in megabyte hint: 16 GB is exactly 16384MB) 3.) Copy the entire USB Flash drive on to the 16 GB partition and make the partition bootable. Open the command prompt and type this: diskpart (note if not already in it) list disk (note: disk number next to disk) list volume select volume # (note:where # is the number of the partition in the output of the list volume command.) list partition select partition # (note:where # is the number of the partition in the output of the list partition command.) delete partition # (note:where # is the number of the partition in the output of the list partition command.) select partition # (where # is the partition you want to format on the disk note the number beside partition in the list partition output.) create partition primary size=16384 Active FixPartOffset DumpMBR select volume assign letter=z: format fs=ntfs exit (Note: A message should appear saying “boot code was successfully undated on all targeted volumes” should appear. The check if the partition is marked “active” in disk part and if not type select disk and then type active.) Then type the following: robocopy D: /MIR Z: (Where D: is the letter of your flash drive and Z: is the letter assigned to the 16 GB partition on the hard drive for the creation of the Windows 10 Recovery Partition. 4. Restart. The PC should automatically launch the installer from the partition and add an entry “Windows setup” in the entries BCD. If not edit the boot menu with Easy BCD. Can anyone help me because I can't find a guide to this from Microsoft because all I can find is how to create a recovery drive, which is not the same. Also, when I try to ask on the Microsoft's forum all I get are answers to frequently asked questions and I can't find the phone number to call Microsoft either.