[Guide] Preventing Win10AnniversaryUpdate/AnySystemAutoUpgradeToWin10 in easiest way "Permanently"

Apparently, much people think that Win10 system is so troublesome,
especially the most bugged and annoying AutoUpdate and AnniversaryUpdate.
I've saw most post on the Internet have said such like:
Go to the service config to disable the Update service, change the settings of the Group Policy, even using Batch scripts, VBS and system scheduling.
But in many cases, the Win10 system will automatically turn them on again, result in too complicated but ineffective @@

In fact, the method is really really simple I think......
Only need few steps then you can solve everything "permanently",

but I did not assure if there will be any problems after doing that (#

At least every system I'd use this method have no problem,
and never receive auto updated until now
(I also did not need to worry about it again when Win10 just came out XD)

[Tutorial]

1.a Open Notepad, directly save new file with blank content and select "All Files" when saving.

or

1.b Just find a few files and change them along with the extension.

2. Renamed and saved as the following 3~4 names

$Windows.~BT
$Windows.~WS
Windows10Upgrade
Windows.old <- Optional, for that might cause problems (but none till now)

3. Place all files you just created under the root of C: , also confirm the administrator privileges to place it.
※If there has folders with same name just delete folders first, or files will be not able to copy there.

4. Finished


As shown in the figure (though Chinese but most are the same:

After complete above steps, there will "never" receive any anniversary update,
even other systems will never got "Upgrade from Win7/8/8.1 to Win10" message that may have been in the past and in the future;
simply because the installation must fail (cannot create a folder to download update files).
Further more, you won't need to worried about AutoUpgrade's disk space monster being there again.

Win10's common patch is not sure if it will find another way,
but this method is used on several computers around me, they were all OK since 2 years ago,
none any computer got automatically update or receive scam messages after I've done this.

If any questions, please feel free to give feedback here~~~