Registry Key deletion - Home Premium & Ultimate are different

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  1. Posts : 5
    Windows 7
       #1

    Registry Key deletion - Home Premium & Ultimate are different


    I have two computers, a laptop with Home Premium and a desktop with Ultimate. I'm setup as admin on both and installed an application on both that I ended up removing. There were a couple of registry keys that are giving me 'fits' and need removing. I am struggling to get these keys removed.

    Using Regedit, I have no issues removing the keys on the Ultimate desktop machine. However, I get the typical error message "Access Denied" message on the Home Premium laptop. Of course I've made sure that my permissions are set to OWNER, etc. but still no luck.

    Would this imply that I have a GROUP POLICY issue between the two machines? I understand that some of the differences between the Home Premium and the Ultimate versions of Win 7 are related to GROUP POLICY. Does anyone have any thoughts that would help with this problem. I've heard that it is possible to copy the group policy from one machine to another. Is this possible and if so, how?

    Any help would be appreciated.
    thanks
    Jim
      My Computer


  2. Posts : 1,346
    Windows 7 Professional x64
       #2

    rfdes said:
    I have two computers, a laptop with Home Premium and a desktop with Ultimate. I'm setup as admin on both and installed an application on both that I ended up removing. There were a couple of registry keys that are giving me 'fits' and need removing. I am struggling to get these keys removed.

    Using Regedit, I have no issues removing the keys on the Ultimate desktop machine. However, I get the typical error message "Access Denied" message on the Home Premium laptop. Of course I've made sure that my permissions are set to OWNER, etc. but still no luck.

    Would this imply that I have a GROUP POLICY issue between the two machines? I understand that some of the differences between the Home Premium and the Ultimate versions of Win 7 are related to GROUP POLICY. Does anyone have any thoughts that would help with this problem. I've heard that it is possible to copy the group policy from one machine to another. Is this possible and if so, how?

    Any help would be appreciated.
    thanks
    Jim
    You can seize ownership of any registry key;
    Right-click the key, click Permissions, click Advanced.
    Then set any permission you need.

    However, there are two restrictions:
    - You cannot do this in bulk.
    - In nested keys you must frequently set ownership from inside out. Doing it on the main key only may fail.


    I don't use Group Policy, so I have no answer for that part of your question.

    HTH
      My Computer


  3. Posts : 5
    Windows 7
    Thread Starter
       #3

    Thanks for the response. As far as permissions, I have set the permissions as you mentioned. In fact I set myself as the OWNER but still get the access denied message. There is something that I am missing and am definitely confused.

    Jim
      My Computer


  4. Posts : 1,346
    Windows 7 Professional x64
       #4

    rfdes said:
    Thanks for the response. As far as permissions, I have set the permissions as you mentioned. In fact I set myself as the OWNER but still get the access denied message. There is something that I am missing and am definitely confused.

    Jim
    Give this a try;

    psexec -i -d -s c:\windows\regedit.exe

    psexec is available from Microsoft here
    http://technet.microsoft.com/en-us/sysinternals/bb897553.aspx

    This should give you full access to the registry; definitely be careful with this sort of access.
      My Computer


  5. Posts : 5
    Windows 7
    Thread Starter
       #5

    Hi, Sir George -
    I tried your suggestion, but when attempting to run the service I get the error message:
    Couldn't install PsExec Service:
    Access Denied

    Boy, very frustrating, one problem turns into another...

    I appreciate the response.
    Jim
      My Computer


  6. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #6

    Use at you own risk. Search Everything.
    Everything Search Engine
      My Computer


  7. Posts : 1,346
    Windows 7 Professional x64
       #7

    rfdes said:
    Hi, Sir George -
    I tried your suggestion, but when attempting to run the service I get the error message:
    Couldn't install PsExec Service:
    Access Denied

    Boy, very frustrating, one problem turns into another...

    I appreciate the response.
    Jim
    The downloaded file is in a "zip" format. Extract the contents to a folder of your choice, then make a note of the file path, you will need it to run the executable.

    Next open an elevated command prompt;

    https://www.sevenforums.com/tutorials/783-elevated-command-prompt.html

    The results should appear as in the attachment, assuming you extract the contents to your desktop. The last line in the attachment is the one I provided in my other post, which is;

    psexec -i -d -s c:\windows\regedit.exe
    Attached Thumbnails Attached Thumbnails Registry Key deletion - Home Premium & Ultimate are different-command-window.jpg  
      My Computer


  8. Posts : 5
    Windows 7
    Thread Starter
       #8

    Thanks for sticking with me on this...

    I took your advise and this time I was successful in getting PEexec to run as you suggested. Again, I cannot delete one of the keys that is giving me the problem. I get an error message regarding a 'FILE' not being found?? Here are some snapshots of what I have experienced: thanks gain for your help...
    Attached Thumbnails Attached Thumbnails Registry Key deletion - Home Premium & Ultimate are different-keydel.png  
      My Computer


  9. Posts : 1,346
    Windows 7 Professional x64
       #9

    rfdes said:
    Thanks for sticking with me on this...

    I took your advise and this time I was successful in getting PEexec to run as you suggested. Again, I cannot delete one of the keys that is giving me the problem. I get an error message regarding a 'FILE' not being found?? Here are some snapshots of what I have experienced: thanks gain for your help...
    This is a "best guess" on my part; try rebooting and see if the entry is still present.

    If that doesn't work, I have another suggestion to try afterwards.

    Let me know.
      My Computer


  10. Posts : 5
    Windows 7
    Thread Starter
       #10

    Well -
    I did some more reading and it turns out that the key has some embedded null characters. SysInternals has a tool called RegDelNull.exe which did the trick. Seems so easy when all is said. Boy, what a pain. I don't understand why you cannot del a key with embedded nulls but evidently so. If you have any further knowledge I would be most grateful.

    thanks
    Jiim
      My Computer


 
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