<P> Windows exposes APIs that allows user - mode applications to register to receive a notification event if a particular Registry key is changed . APIs are also available to allow kernel - mode applications to filter and modify Registry calls made by other applications . </P> <P> Windows also supports remote access to the Registry of another computer via the RegConnectRegistry function if the Remote Registry service is running, correctly configured and its network traffic is not firewalled . </P> <P> The Registry is physically stored in several files, which are generally obfuscated from the user - mode APIs used to manipulate the data inside the Registry . Depending upon the version of Windows, there will be different files and different locations for these files, but they are all on the local machine . The location for system Registry files in Windows NT is% SystemRoot% \ System32 \ Config; the user - specific HKEY_CURRENT_USER user Registry hive is stored in Ntuser. dat inside the user profile . There is one of these per user; if a user has a roaming profile, then this file will be copied to and from a server at logout and login respectively . A second user - specific Registry file named UsrClass. dat contains COM Registry entries and does not roam by default . </P> <P> Windows NT systems store the Registry in a binary file format which can be exported, loaded and unloaded by the Registry Editor in these operating systems . The following system Registry files are stored in% SystemRoot% \ System32 \ Config \: </P>

Where are the registry files located on a windows machine
find me the text answering this question