Help identifying registry keys meaning - significant lag when used


  1. ng80092a
    Posts : 21
    7 pro x64
       New #1

    Help identifying registry keys meaning - significant lag when used


    I'm on win7x64 and i've noticed severe mouse lag while playing league of legends, wich ocurs randomly
    To track down the problem i used process monitor, and i noticed that in those moments explorer.exe would make changes in the registry system, and i'm guessing those are the cause of it, but i'm not quite sure

    HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{CEBFF5CD-ACE2-4F4F-9178-9926F41749EA}

    and

    HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{F4E57C4B-2036-45F0-A9AB-443BCFE33D9F}

    seem to change loads of stuff sometimes..

    http://puu.sh/aCbIP/2709db2d06.png

    Can someone explain what are those registry folders?
    Can i delete them?
    thank you
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  3. A Guy
    Posts : 53,365
    Windows 10 Home x64
       New #2

    Those are the User Assist keys

    {CEBFF5CD-ACE2-4F4F-9178-9926F41749EA} – A list of applications, files, links, and other objects that have been accessed.

    {F4E57C4B-2036-45F0-A9AB-443BCFE33D9F} – Lists the shortcut links used to start programs

    You will expect them to be written to almost constantly. You can use this small free tool to decode them, but I think you may just be seeing normal behavior at the time you are having the lag.

    UserAssistView - Decrypt and displays the list of all UserAssist items in the Registry

    Some reading for you

    Windows-userassist-keys - aldeid

    A Quick Glance At The UserAssist Key in Windows « Windows Explored

    Just generally, never delete any keys in the registry!

    A Guy
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