Hi, no worries :)
Oh I thought KDE was supposed to be light on memory usage and also quite stable.
Nice time to try Solus with their recent ISO refresh. Solus KDE will be a future option, some users say it's one of the best KDE distros !
Why do you need to use Windows to do your taxes ? Is it not done on a website ? Or do you need to use some special Windows-only software ?