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hkcr

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The HKCR (HKEY_CLASSES_ROOT) registry hive stores file association and COM class registration data on Windows. Discussions on WindowsForum.com cover its structure, including the relationship between HKCR and HKLM\SOFTWARE\Classes, particularly on 64-bit systems where the Wow6432Node branch mirrors 32-bit application entries. Users troubleshoot missing default entries, such as restoring Notepad's registration in HKCR after using third-party association tools. Topics also address priority and fallback behavior when identical branches exist in HKCR and HKLM, clarifying that HKCR is a merged view of per-user and machine-wide class registrations. These threads provide practical guidance for advanced registry editing and file association repair.
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    Windows 7 Structure of Registry: HKCR vs. HKLM; Wow6432Node branch

    I have some questions about the structure and dependencies of Registry branches. When I inspect (on 64bit Win 7) all entries of a certain program then I found two identical branches of it in HKEY_CLASSES_ROOT\ and HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ Is the second a replication of the...
    • pstein
    • Thread
    • branch class dependency email fallback hkcr hklm priority registry software structure windows 7 wow6432node
    • Replies: 1
    • Forum: Windows Help and Support
  2. Exp HP

    Windows 7 Default registry settings needed for Notepad in HKCR

    (Resolved) Default registry settings needed for Notepad in HKCR I was using a program called Default Programs Editor to associate some files and give them some custom icons I made, but one of them in specific (.BIN files) didn't work out too well. Well, all the changes I made to .BIN files are...
    • Exp HP
    • Thread
    • application binary files configuration default programs extensions file association file types hkcr icons notepad registry settings troubleshooting windows xvi32
    • Replies: 2
    • Forum: Windows Help and Support
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