There's a saying which sometimes refers to Linux, but which fits Windows 10 as well:

"It's only free if your time has no value."

Anyway, with Winaero Tweaker you can disable both Windows Update AND Automatic Maintenance. It has been a couple of months since I last booted into Windows 10, but I had good luck using Windows 10 without updates (third party antivirus is more than enough I think - just a personal opinion).

So no updates or automatic maintenance tasks were run and scheduled tasks can be manually disabled. It's a locked down system that works pretty well. Then, when a new version becomes available after 6 months you can trigger it manually with MS own update utility or download the new version to a USB-stick and update.

The only times I got virus on a Windows machine were when I wasn't using antivirus. I have never been up to date with security patches (20 years time).

Security patches are more important for macOS and Linux users who don't have antivirus installed. Many Mac users are using OSX versions that haven't seen security updates for years and still no antivirus installed (not recommended). There aren't many viruses for OSX so Snow Leopard users can run 5-6 years without security patches and without antivirus and still be ok (not recommended – just putting things in perspective).

Anyway I think the security circus has to end because it borks too many systems.

This Poor Guy has it bad 

https://www.wincustomize.com/explore/dream/10245/

One other thing occurs to me-

I think the Win10 keys are linked to your Microsoft account.  If you haven't already, you might try logging into your account while on the machine.  There's a section in your user profile for managing devices, you might look at that.

There's also a Win10 option to log in with your Microsoft account.  I have that turned off (and I'd guess you do too), but you might need to have that turned on to get the activation to work (?).

Clear as mud to me.

I've already tried that and re-entered my product key... no go.  I'm going to have a chat with a MS rep to see if I can get this resolved.  If not I'm possibly up for a new license.

The thing is, so many of the apps I installed were gone.  It was like the update did a system restore to before I had installed them, thus removing everything thereafter.

Yeah, it was likely a failed update rather than a deliberate act.  Still, that's no consolation to me.  I have programs that don't work anymore.  After getting my bank account getting scammed for a couple of grand a while back, I began using a VPN to cover my tracks.  It wasn't uninstalled by the update, but program no longer works.  I tried uninstalling and reinstalling it after a Wise Care 360 clean up, but the program is now useless to me.

I'm going to try a sfc scannow scan later to see if any Windows files are missing or damaged.  I'm hoping that will resolve my issues.  If not I'm looking at a reformat.

It was KB4343902.  According to my update history it was a 'Quality Update'  Quality?  Given what it has done, I don't know how they can call it that.  The history also says it installed successfully.   Successfully???   It has buggered up my entire system.... and possibly will cost me some cash for a new license.

GRRRRRR with a capital GRRRRRRRRRRRRRR!!!!!

Funny you mention it, but now I think of it, I've never been able to do a system restore on Win 10, either.  It's almost as if MS doesn't want users to rollback prior to updates, even if it is necessary to correct stuff-ups they created.  This is why forced updates are so wrong... especially when they sneak in during the middle of the night and update your system without your knowledge or consent.

It may be that we only license the OS and must agree to the terms of use, but for mine that arrangement is patently wrong when MS comes in a fechs up other software that WE PAID for, then deactivates hardware by uninstalling or corrupting drivers and/or firmware. 

Last night I discovered that a PCIE card with 10 additional SATA ports now doesn't work, meaning that the HDDs connected to it cannot be seen by the system.  It was all good before the 'updates' but now is kaput.   I tried reinstalling the drivers but no go, it's a dead as a doornail.  I also discovered that a PCIE card with in and out HDMI ports to connect external media devices is now kaput as well.

Another thing, too!  I have a 6 bay caddy to accommodate SSDs that works sometimes but not others.... the drives appear in 'My Computer' one minute and are gone the next.  Again, I believe it is a driver issue.  Thing is, I never had such issues with it, or the PCIE cards, in Win 8.1.

It seems that I'm not going to be able to resolve the problems MS has created, so now I have to make a decision as to whether I reformat with Win 10 or just put in a fresh copy of Win 8.1 that I have.   I'm leaning towards Win 8.1 because I found it far less problematic than 10, and with my Stardock products installed it's just like Win 7 but a lot faster.  However, the problem with that is Win 8.1 will lose support in the coming future and I'll be forced to Win 10 if I want to continue getting security patches, etc.

If I decide on Win 8.1. I suppose that I'll have a couple of years yet to see how I will proceed going forward, and maybe by then MS will have gotten its act together and fixed all the issues that plague Win 10.  However, given its past regarding major cockups and treating users like crap, I won't be holding my breath.

Has Microsoft become the new Apple, disliked and hated by the majority of computer users?

For mine, an absolute 100% YES!!!!!

You are just one of a few lucky ones.  Lots of people have had issues with Win 10 and its forced updates, me included this time around.   I'd not had too many issues before on my other machines, but on this one I've had a few, including updates borking quite a few things.  I've been able to repair some things but not all, which prompts me to either reinstall or go back to Win 8.1. 

I don't like Win 10 so I'm thinking the latter as it never gave me any major issues and ALL my stuff worked on it, unlike on 10.  After running sfc /scannow to see if that helped, I had another program throw up saying it cannot run due to a system error.  I tried reinstalling it but no go, it is feched on this current Windows installation.

Exactly!  The amount of time and effort it took me to resolve my issues [about 4 hours] 'without' reinstalling Windows was horrendous.  It would have taken twice that or more had I had to do a complete reformat and reload all of my programs, etc.  Luckily I have been able to resolve my issues after speaking with a MS rep, though I was not at all pleased with the final prognosis after more than an hour on the phone.

It turns out that my Product Key had been invalidated and thus blocked by MS for some reason, therefore not allowing me to reactivate my copy of Win 10.  Anyhow, the upshot of it all was that I got a new key and my copy is now activated. 

Moreover, those programs that were not working correctly now are, though two had to be reinstalled to create new registry keys.  Not only that, Windows is running faster since reactivation - got real sluggish when it wasn't - and I'm a lot happier than I was.  Still don't like Win 10 but I'll stick with it for now.

Thanks, Dave.  Yeah, it was a drawn out issue that surely tested my patience and resolve.  Luckily there is an activate by phone option these days, otherwise I doubt that I'd have it fixed as yet.  Fortunately, mostly everything is back to normal, though I still have a little housework to do in order to tidy things up and remove the remote assistance app.... don't want that on my machine, do I!

Have you tried turning it off and turning it on again....

Nope, not happy with Win 10.  Just a tad happier with it than I was after the update borking.   I very nearly went back to a copy of Win 8.1 that I had reserved for another machine I have waiting in the wings, but seeing as 10 is behaving better at the moment I'll persist with it.

As for locking the system down, apparently WinAero has a program to do that, I just need to go find and install it, cos if I had to go through all that pain and frustration again, I'd grab Win 10 by the codes and rip 'em out.  Hehe.  [Cods?  Think codpiece, like male ballet dancers wear to protect/cover the family jewels]

The NOT fixing what ain't broke is a concept completely alien to MS.  I can understand patches to protect against the new 'uglies' that keep coming out, , but 'updated drivers' that actually break the intended devices, then that's another thing entirely.  All my add-in devices [PCIEs, etc] were working perfectly well until MS came along and MSed them up [pun intended].

Also, me thinks there's a lot of bloatware in 10, so-called new features that most/many never use.  I certainly don't use them and would prefer my copy of 10 to be stripped back to the days of Win 7/8.1, minus those confounded apps.

If only it were that easy.  When MS breaks something they don't do half a job about it.  No, it's the Full Monty and then some.

I'm sure he knows the it crowd...just anoyed with ms all the  same 

I keep telling you Mark....

MS doesn't like you.