Registry Backup File Size Is Growing


  1. gregyurkon
    Posts : 440
    Windows 10 Home 64-bit, 22H2 19045.4170
       New #1

    Registry Backup File Size Is Growing


    I've backed up my registry twice recently, and I noticed a huge difference in the size of the backup file. Two days ago, the backup I created was 18,066 KB. The one I created this morning is 247,691 KB. Should I be concerned about this, and, if so, what can I do about it?
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  3. lx07
    Posts : 5,478
    2004
       New #2

    Are you sure you backed up the whole thing the first time? If I export the whole registry from regedit (from a fairly recent clean install) it is 200MB (C:\Windows\System32\config is 175MB).

    Your second backup looks about right - the first very small...
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  4. gregyurkon
    Posts : 440
    Windows 10 Home 64-bit, 22H2 19045.4170
    Thread Starter
       New #3

    Thanks for the information. I must have found a way to screw up a simple thing like backing up the registry.:)
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  6. lx07
    Posts : 5,478
    2004
       New #4

    If you had one of the hives (HKEY_CLASSES_ROOT etc) highlighted instead of "Computer" it would only back up that part...
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