Did not uninstall before new motherboard

[seattleman66]

Despite the very visible sticky topic I changed my motherboard and cpu without uninstalling. I also had to install a new version of Windows. I now can see Prepar3d in my directory but it won't run and does not appear in Apps and Features. I know this is entirely on me but I hope I can get some guidance. Should I go into the directory structure and delete everything now and then redownload and reinstall? Thank you in advance. (embarrassed) Steve

[elgreco111]

If possible make a full uninstall, clean registry and delete all P3d files/directories. After new start of OS reinstall.
Should fix this issue

[Martyson]

"Despite the very visible sticky topic"

You could have posed there.
My first thought, e-mail the LM licensing dept. first ... get a new license, see what they say.

[w2dr]

'Morning Steve. The problem is that you are missing the Registry entry for P3D (and also any installed add-ons that may have updated the Registry) due to the Windows reinstall. There are a number of freeware programs around that will fix the Registry pointers for FSX and P3D. Before reinstalling you may want to try one of those. A quick Google search get you to the right spot(s). Here's a link to one of them: https://www.nmgsimulations.co.za/flight ... try-fixer/ .

Doug

[w2dr]

Steve - Please ignore the above, I just realized there are other P3D-related data in the Registry that still won't be fixed. I'd go ahead with the reinstall..............Doug

[seattleman66]

Thanks much for the replies, I've contacted licensing.

[seattleman66]

As a follow-up I was directed to do a complete re-install of P3DV4 which I did. With this, and the Windows re-install I was left with a great deal of other re-installation of scenery, aircraft, and utilities. Still, after years of 'accretion' I've told myself this is good thing. Up and running now.