Oracle Database - OUI-10044: The selected Oracle Home ...

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1 - About

You may have this error when you try to install a oracle software with Oracle Universal Installer (OUI) (as for instance, the companion product).

OUI-10044: The selected Oracle Home location already contains an Oracle Home 
or APPL_TOP created while running a different OS

3 - Solution

In the majority of the case, you try to install a version of software (database patch,companion, …) which is planned to be use with an other version than the installed product (database, owb, …).

You have to download the good patch/software for the OS version of the installed product.


3.1 - The Os Id

During the installation, an OS Id is passed.

Operating system ID
AIX 610
Linux (x86 and x86-64) 46
HP-UX Itanium 197
Microsoft Windows (32-bit) 912
Microsoft Windows Server 2003 (64-bit It) 233
Solaris SPARC 453

3.2 - For the installed product

You can check the Os ID of the installed database in the file :


Path is normally on Windows : C:\Program Files\Oracle



3.3 - For the software to install

And on the set/patch/cd of a software (for instance, companion), you will find it :


in the node ARU_ID.

Here an example for the 64bit Itanium:

<?xml version="1.0" standalone="yes" ?>
                <ARU_ID_DESCRIPTION>Microsoft Windows Server 2003 (64-bit It)
db/oracle/oui-10044.txt · Last modified: 2017/09/06 19:28 by gerardnico