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"Unable To Find Valid Target Platform" When Installing Notes, Due To a Suspended Installation.

Technote (troubleshooting)


When trying to install Notes, you get the below error:

"Unable to find valid target platform"

Usually this error occurs when the user attempts to install a Notes Fix Pack over a nonexistent base version. A Fix Pack checks for the existence of this folder in the registry:



HKEY_LOCAL_MACHINE\SOFTWARE\IBM\Lotus\Expeditor on 32-bit operating systems. If these don't exist, the above error is thrown.

However, in this case, this error occurs when the user tries to install the base version of Notes (8.5.2, 8.5.3, etc.)


In one case, this was caused by a pre-existing suspended install of Notes, as seen in the install log:

MSI (c) (7C:FC) [10:21:53:061]: Suspended install detected. Resuming.

Resolving the problem

When an install is suspended in Windows, it corresponds to a registry key. The following registry folder contains product codes for suspended installs:


If this folder depicts a suspended Notes install, deleting this key should resolve this issue.

*NOTE* This document only applies to installing the base version of the client. This error is more commonly seen when attempting to install a fix pack, as seen in this related document:

As with all technotes, this document may not encompass all possible reasons for this error. If you have performed the steps in this technote and are still having issues, it is recommended to open a ticket with support to troubleshoot.

Document information

More support for: IBM Notes

Software version: 8.5.3

Operating system(s): Windows

Software edition: All Editions

Reference #: 1624864

Modified date: 20 May 2015

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