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I have a Surface 2, with a corrupted winload.efi file, that I don't know how to get into WinRE with. I can't get an ISO. It runs off of Windows RT 8.1. I've looked and looked for ISOs. I found a recovery image from Microsoft, but it's not done anything. What's going on is for some reason winload.efi is corrupted. I can post what the error exactly says.
Recovery
Your PC needs to be Repaired.
A required device isn't connected or can't be accessed.
Error code: 0xc000000f
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.
If I try to press the Windows key to "try again", I get
Recovery
Your PC needs to be Repaired.
The application or operating system couldn't be loaded because a required file is missing or contains errors.
File: \WINDOWS\System32\winload.efi
Error code: 0xc000000f
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.