Usually, it's often advised to keep your computer up to date by installing updates for Windows and installed programs.
However, automatically installing Windows updates as soon as they are released is often a bad idea (including in business).
Some new versions and many updates were problematic when they were released.
You can easily verify this by searching for "windows update blue screen" in Google.
If you have a Pro or Enterprise edition of Windows 10, you can use the "gpedit.msc" tool (local group policy editor) present by default on Windows (minimum pro edition).
Then, go to "Computer Configuration\Administrative Templates\Windows Components\Windows Update" and double click on the "Configure Automatic Updates" policy.
To turn off checking for and automatically installing updates on Windows 10, select "Disabled" for this policy.
As indicated at the end of the description of this group policy, when this policy is disabled, updates for Windows will have to be checked manually.
Warning : this therefore only blocks the automatic search for Windows updates, but it doesn't prevent you from manually launching the search for Windows updates from the settings of Windows 10.
To prevent Windows 10 from causing it to check for updates after some time (several days, several weeks, ...), we recommend that you enable the "Do not allow update deferral policies to cause scans against Windows Update".
Select "Enabled" and click OK.
Once the above policies are configured, you need to force the policy update on your computer.
To do this, open a command prompt (cmd) as administrator or right-click on the start button, then click : Windows PowerShell (admin).
In the window that opens, type this command :
Which will display this :
Updating policy... Computer Policy update has completed successfully. User Policy update has completed successfully.
Then, go to Windows 10 settings.
Then, in : Update & security.
As you can see, the "*Some settings are managed by your organization" message appeared in red.
A little further down, you will also see the line "*Your organization has turned off automatic updates".
Click on the "View configured update policies" link.
Here, you will see that several policies have been applied on your computer (including those configured via gpedit.msc) :
As expected, only the automatic check for Windows 10 updates has been disabled.
But, the "Check for updates" button is still present.
If you click this button, Windows will check for new updates.
Once Windows updates are found, Windows 10 will download them automatically.
The easiest unofficial solution that works no matter what edition of Windows 10 is to stop and disable the "Windows Update" service present in Windows 10.
To do this, search for "Services" and launch the application of the same name.
In the list, locate the "Windows Update" service and double-click on it.
As you can see on the left, once the service has been selected, the "Windows Update" service allows you to allow the detection, download and installation of updates for Windows and other programs (such as Office, for example).
Disable this service, click "Apply", then stop it. (In this order, to prevent the service from restarting instantly after it's manually stopped.)
Then, click on OK.
As you can see, the "Windows Update" service is now disabled.
If you go to Windows 10 settings -> Update & Security, you will see an error message appear on Windows 10 (version 2004 and 2009).
This is normal, given that the "Windows Update" service is stopped and Windows 10 can't start it since this service is disabled.
One of the update services is not running properly, but you can try to run a troubleshooter to fix the problem.
If you try to run the check for automatic updates on an older version of Windows 10 (version 1607 to 1909 included), you will see this error message :
There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070422).
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