Select different HDD registry from a batch file

Question

I've written a simple batch file to make changes to the registry in Windows8, it works as I expected whilst running in Windows8 but now I want to run it from command prompt on a different drive letter.

Booting in recovery mode on my laptop boots to dirve letter X: which gives me access to the command prompt. I have my batch file on an external pen drive on letter D:. I can switch to drive d and run the script but obviously it doesn't know to look on drive letter C: for the registry, I presume it just tries on its current drive letter D:.

REGEDIT4

[HKEY_LOCAL_MACHINE\DummyTree]
"Value"="Some String"

The above is a sample of the code im trying to run from the pendrive (drive D:) on the main HDD (drive C:).

Answer 1

You could try specifying the regedit.exe in the C: drive

C:\Windows\regedit.exe /s yourregfile.reg