Sophos Enterprise Console 4.5.1.0 - Could not start installation program on the computer

Good morning,

I am using Sophos Enterprise Console 4.5.1.0 to install Sophos Endpoint Security and Control, version 9.5 on pcs varying from Windows XP to Windows 7.

I have encountered a number of errors and thanks to this site I've managed to progress through most of them.

The following problem has me stumped though and any suggestions would be greatly appreciated:

"Could not start installation program on the computer: the system cannot find the file specified. [0x80070002]"

I have ensured that the user has administrative rights to both the local and domain accounts.

I have ensured the remote registry on the user's pc is enabled and started.

I can ping the machine from the server in which the console is installed.

I have ensured that there are no firewall services running on the user's pc.

On this website the only help I can find is that this is a windows error I am encountering and that I must  "Check that the required folder can be written to by the workstation."

Please could someone help me by telling me:

Which folder must I be checking?

I have checked that the user can write to c:\Program files by creating a new text document in this folder.

Let me know if I should be performing something a bit more scientific?

Where can I see more detailed logs of the error I am encountering?

If there is another solution to the above problem?

Thank you in advance!