Comparing registry keys is done via the REG COMPARE command.
REG COMPARE [ROOT\]RegKey [ROOT\]RegKey [/v ValueName] [Output] [/s] REG COMPARE [ROOT\]RegKey [ROOT\]RegKey [/ve] [Output] [/s]
Wherein Output − /od (only differences) /os (only matches) /oa (all) /on (no output).
@echo off REG COMPARE HKEY_CURRENT_USER\Console HKEY_CURRENT_USER\Console\Test
The above program will compare all of the values between the registry keys HKEY_CURRENT_USER\Console & HKEY_CURRENT_USER\Console\Test.
Result Compared: Identical The operation completed successfully.
If there is a difference between the values in either registry key, it will be shown in the output as shown in the following result. The following output shows that the value ‘EnableColorSelection’ is extra I the registry key ‘HKEY_CURRENT_USER\Console’.
< Value: HKEY_CURRENT_USER\Console EnableColorSelection REG_DWORD 0x0 Result Compared: Different The operation completed successfully.