I tried uninstalling my HP printer 2480, as I was missing a bit of software after accidentily deleting it, and thought if I uninstall everything I could then reload the software and drivers from the HP website. This failed. Whatever I tried it was impossible to uninstall. I even did a systyem restore, which indeed brought back what was there before - but with the 'Missing TrayApp.Msi.' message every time I turn on the computer. If indeed I am missing the trayapp (not sure what it is) how do I simply reinstall it. I followed one path that seemed so incredibly complicated I gave up and nearly threw the printer away (it was quite cheap but vert effective), as it was taking hours and hours of my time to resolve. The reason not to is the thought that the same error message would still keep appearing because I cannot uninstall the printer.
I am now on Windows 8.1, but seem to remember that with Windows Seven I put the disc in and it simply asked would I like to replace the installation. One click and it was done. Why is it now so difficult? I would rather not reboot the computer for obvious reasons but surely there must be a simple solution - help?