Fixed – The installer is unable to instantiate the file in Oracle 11g Express

Today I got the following error message while installing OracleXE112_Win32 on Windows 7 Professional 64 bit machine. I installed the same version on Windows 7 Professional 32 bit machine and it was working fine.

Error Message:

The installer is unable to instantiate the file C:\Users\admin\AppData\Local\Temp\{67D0AF91-F288-4E94-BB16-A688CDAAE03A}\KEY_XE.reg. The file does not appear to exist.

The installer is unable to instantiate the file


As you get the following error message, don't click on OK button and perform the following steps to resolve the issue. The message shows that the file does not appear to exist, it means the file path is missing.


Go to START > type RUN or press WIN + R to open RUN > Type regedit and press Enter to open registry key.

The installer is unable to instantiate the file


Now locate the below registry path:


Identify the string value 1, here you will see the data appears like: DISK1;1

The installer is unable to instantiate the file-04


Here you need to edit this value to the path shown in an error message, like C:\Users\admin\AppData\Local\Temp\{67D0AF91-F288-4E94-BB16-A688CDAAE03A}\KEY_XE.reg in my case.

The installer is unable to instantiate the file


Now click on OK button after modify the 1 value with the path given in error message.

Continue with the current installation process, once the installation is completed, check for all the services are running perfectly.

If you face any issue with this installation, write below in comment section.

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