tldr/pages/windows/reg-compare.md

reg compare

Compare keys and their values in the registry. More information: https://docs.microsoft.com/windows-server/administration/windows-commands/reg-compare.

• Compare all values under a specific key with a second key:

reg compare {{first_key_name}} {{second_key_name}}

• Compare a specific value under two keys:

reg compare {{first_key_name}} {{second_key_name}} /v {{value}}

• Compare all sub keys and values for two keys:

reg compare {{first_key_name}} {{second_key_name}} /s

• Only output the matches between the specified keys:

reg compare {{first_key_name}} {{second_key_name}} /os

• Output the differences and matches between the specified keys:

reg compare {{first_key_name}} {{second_key_name}} /oa