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  1. #1
    Join Date
    Oct 2000
    I have met questions in installing ORACLE8.1.6 on Window2000. When I finished the installation of Window2000,then I installed ORACLE8.1.6. I login as Administrator and install Oracle.But When the installation proceed half,the error occur: ORA-12638. The installation is faild. I think user's privilege may be insufficient .So I login as another user with Administrator privilege.But the error is still exist. Why? The question is strange. Because I have finished the ORACLE installation on Window2000 on another Server which environment is same as the last one.

    Another question is when I install Oracle as Administrator,the installing program ask me the Password for INTERNAL.But when I install Oracle as general user with Administrator privelge,it does not ask me any password. Why?

    Any help is highly appreciated.

  2. #2
    Join Date
    Nov 2000

    The ORA 12638 implicates that "Credential retrieval failed" -
    The authentication service failed to retrieve the credentials of a User.
    It seems that you have a problem with your administrator rights in the specific machine.

    Regarding the other question,
    Oracle installation creates a group (local in windows NT), which its members can login into oracle without the need of a password.
    It seems that the Administrator Account has some problems with security issues.
    My advice - try installing windows 2000 from the begining.
    If you are using Directory services consult you Sys Admin.

    Gool Luck.

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