I agree with untog, you need to get your install fixed. I'm running on hardware from 2011(except the SSD) since launch and Windows 10 is extremely fast to boot

I agree with untog, you need to get your install fixed. I'm running on hardware from 2011(except the SSD) since launch and Windows 10 is extremely fast to boot and the UI hasn't crashed once. It even runs my security camera software that was last updated in 2008. I only recently re-installed Skype so I can't speak to that but it has problems all of it's own.