Migrating windows old version from 2015 to new version

I need help, I have 2015 version x86 on windows and it does not run, but my old google voice - sip settings are there and i need to reverify but it won’t open, installing new version of jitsi, does not know my old settings from appdata/roaming area, i did a back up just in case, but now I am stuck please help thanks