FileBot

Recently did a clean install of windows and lost my filebot license key and cannot seem to find it however i can confirm purchase via paypal on 11/06/2017 and can provide proof if needed

[FAQ] How do I recover a lost license key?

Note that the current universal license system did not yet exist in 2017. If you have made a purchase in 2017, then it must be a Microsoft Store or Mac App Store purchase. In that case, the Store will remember your purchase in your Microsoft / Apple account. See [FAQ] How do I restore my Microsoft Store or Mac App Store purchase? for details.

Yeah that's what's i assumed can't figure out which ms account i used

I guess you could contact Microsoft Store support with your paypal payment information. They might be able too lookup the account for that transaction. We have no access to that kind of information.