For those having problems, I would highly recommend doing a refresh, I also had a couple of BSOD, but since I did the refresh about 5 days ago, and took my time updating it instead of rushing them, I haven't had any issue. It is VERY important to do the updating in a proper way, as I think this is the main source of problems.
For those not having problems, you should feel really lucky, as these errors are popping up all over the internet, obviously prompting MS to respond with an apology for the issues.
I do agree that the version of Windows 10 that came with the SP4 is probably a bad version, as it told me it was upgrading to the full version of Windows 10 at the first update.
I took the sp4 Back to the Microsoft store today. It fixed all the problems so far. Works perfect. I'm convinced the first batch had problems. Very Satisfied with the service.I made a huge mistake with my first SP4. I put up with its problems for too long. Countless hours spent with MS Tech Support with no fix. Second SP4 was better but not perfect either. If you own a troublesome machine, return it. You deserve (and paid for) a machine that works right out of the box.