Your computer building--sucks.
I've built four...no issues.
I purchased two--full of junk and issues.
Wow you've built four PC's good for you, meanwhile I'm on my two hundredth PC build of which all are still running as good as the day I built them!. Oh and by the way the PC I built for my mum was fixed in about 20 mins the time it took to re-image it, I allowed the update to download then hid it from updates to install, it is now running as it should have been doing before the **** update from MS...
I'd still like to know why it was complaining about grub when the HDD was brand new and has never had Linux anywhere near it though if you have some info to share please do otherwise stop posting rubbish