A final update on this issue: I got the DVD from the shop where I got my laptop from. But I couldn't boot from the DVD automatically.  in order to boot from the DVD, I followed the instructions on here: [URL] After booting from the DVD, I got to the command prompt, and run the commands as in here: [URL] !BUT! The last command line is wrong. It must be bcdboot c:\Windows /s z: /f UEFI without the : after the f. And then there is a confirmation message that the boot files were created And then my laptop was able to boot as normal. 
I recently got an Inspiron 15R SE 7520 with Windows 8 pre-installed. This has a massive 1TB hard drive, which I decided to divide into three more manageable partitions and proceeded to do so using EaseUS Partition Master. When restarting the system, I got the following error message: Recovery Your PC needs to be repaired A required device isn't connected or can't be accessed. Error code: 0xc0000225 You'll need to use the recovery tools on your installation media. If you don't have any installation media (like a disc or USB device), contact your system administrator or PC manufacturer Press Enter to try again Press F8 for Start-up Settings Press Esc for UEFI Firmware Settings  1. Pressed Enter. Nothing happens 2. Pressed F8. Managed to find the option to "Restore factory settings". Saved and restarted. Nothing happens. 3. Pressed Esc. Ran the system diagnostics and a couple of hours later, the result is that everything is fine. Restarted and I am back at the blue screen with the first message. I have searched for this problem, and all the proposed solutions begin by booting from the Windows installation CD/DVD and running a command from the Command Prompt. But:  I don't have any Windows installation media and I can't get to the command prompt. I didn't create recovery discs. And the recovery partition on the hard drive is not working.  My request: I obviously need a Windows 8 installation media. How can I get it? I contacted the shop where I got the laptop from, but they are not replying, and the request  form I found online doesn't work for the UK.
Error code 0xc0000225 - Request for installation media for Windows 8