If you are in SDM Update mode, switch to "Personal" mode by selecting/pressing the "Show This Computer" button on the top of the application.
Next, select the SoftPaq from the "Downloaded SoftPaqs" list, right-click on it and then select "Install SoftPaq" from the popup menu.
The install will be a "loud" install and you may be prompted for input. If you accept all defaults, you will perform the same actions of an automated install.
If the SoftPaq(s) still will not install, then you may require additional assistance with your computer.
** Please note that the expertise of HP SoftPaq Download Manager support is limited to HP SoftPaq Download Manager. If your question pertains to something other than HP SoftPaq Download Manager, we recommend that you engage HP technical support instead.