Genuine VISTA systems Windows Defender cannot be updated

Isn't it "KB915597 update patch (denfiniton can't be updated from the beginning, keeps prompting error 80072ee2?)

If you receive Windows Update error 80072EE2 while checking for updates, you will need to add the address of the Windows Update update to the Firewall Exception or Allow list.

Add Windows Update ** to the firewall exception list.

Windows Firewall is the firewall that comes with that version of Windows, and these sites should be included in the exception list. If you are using a different firewall, see the software publisher's help to see how to add these to the firewall exception list

http://*.

If that doesn't work, the other 2 ways to solve it are:

2。Maybe your ISP has put this website block, and you can use ** to get on it.

Most likely, you've installed third-party firewalls, turn them off, and try again.

It's not completely compatible.

Not all Microsoft stuff is good.

It should be a network problem.,If you can't get down.,Try 360 ah system patch to see if it might solve the problem.。

Turn on automatic updates.

Don't worry about it for now, you can upgrade it after a while. My U version was like that before, prompting what to say ** error, and then I didn't care, and I could upgrade it in a few days. But remember to turn on automatic updates.

Summary. Hello dear, glad to serve you, there are several possible reasons if Windows Defender Antivirus won't update:1

Network connection issues: Check that your network connection is stable, maybe there is a problem with the network connection that prevents you from updating the file. It is recommended that you try reconnecting to the network or changing your network settings.

2.Conflicting security software: You may have additional security software installed on your computer, such as antivirus software, firewall, etc., that may conflict with Windows Defender and prevent it from being updated.

We recommend that you try disabling or uninstalling other security software, restarting your computer, and trying to update again. 3.Internal Error:

Sometimes Windows Defender itself fails, which can prevent you from installing updates or updates. At this point, you can try restarting your computer and try the update again. 4 Broken Windows Update Components:

An issue with the Windows Update component may prevent Windows Defender from being updated properly. You can try running the Windows System File Checker (SFC) to fix the corrupted Windows Update component. To do this, press the Win + X key combination to open the shortcut menu, select "Command Prompt (Administrator)", enter the "SFC ScanNow" command and press Enter, and wait for the scan and repair to complete.

Windows Defender Antivirus can't be updated.

Aren't you okay yet? How long will it take?

Hello dear, glad to serve you, there are several possible reasons if Windows Defender Antivirus won't update:1Network Connectivity Issues:

Please check that your network connection is stable, maybe there is a problem with the network connection that prevents you from updating the file. It is recommended that you try to reconnect to the network or change your network settings. 2.

Conflicting security software: You may have additional security software installed on your computer, such as Killer and Firewall, which may conflict with Windows Defender and prevent it from being updated. We recommend that you try disabling or uninstalling other security software, restarting your computer, and trying to update again.

At this point, you can try restarting your computer and try the update again. 4Corrupted Windows Update components: An issue with the Windows Update component may prevent Windows Defender from being updated properly.

You can try running the Windows System File Checker (SFC) to fix the corrupted Windows Update component. To do this, press the Win + X key combination to open the shortcut menu, select "Command Prompt (Administrator)", enter the "SFC ScanNow" command and press Enter, and wait for the scan and repair to complete.

1.Rely on Windows to solve it on its own.

If Windows Defender fails to update automatically, you can first discard the automatic update of Windows Defender and go to the system update check. Go to "Settings Change PC Settings" through the floating panel on the right side of the desktop, then select "Update and Restore Windows Update", click "Check Now", and you will see that there is a virus update definition in the update list to choose from, install it directly, and solve the upgrade problem of the virus database.

If the above methods do not work, it may be a temporary network issue. You can try the following methods in turn.

Press the "Windows +X" key combination and select Command Prompt (Administrator); Type "net stop wuauserv" and press enter; Find the SoftwareDistribution folder under the Windows folder of the C drive and rename it arbitrarily; In the Command Prompt (Administrator) window, enter and execute the command "net start wuauserv". Then do the system update again.

Press the "Windows +X" key combination and select "Control Panel"; Change the viewing method in the upper right corner to "Large icon", then select "Troubleshoot", select "System and security Use Windows Update to solve the problem", and follow the system prompt "Fix the problem that prevents you from updating Windows" to solve the problem step by step.

If none of the above methods work, you can try to perform a "clean boot" of the system according to the following steps:

Press the "Windows +X" key combination, select "Run", enter the "msconfig" command and press enter; Go to "System Configuration", select "Services", tick the "Hide All Microsoft Services" option in the bottom left corner, click the "Disable All" button, and click the "Apply" button; Click the "Startup" tab on the right side of the "Services" tab, and click "Open Task Manager"; Right-click on the listed startup items and select "Disable" to disable all startup items; Close the "Task Manager", click "OK" in the "System Configuration" window, and restart the computer as prompted. Then a system update will take place.

2.Solve it with the help of external tools.

In addition to the system's own automatic update function, it can also be solved with the help of external tools such as 360 Security Guard. From the Control Panel window, select Windows Update as Not checking for updates from. Next, through the right-click menu of the 360 Security Guard system tray icon, select "Kill Fix", enter the scan window, and select "Vulnerability Fix", so that you can also scan out the patch modules that need to be updated and update them.

1.If Windows Defender fails to update automatically, you can first abandon the automatic update of Windows Defender and go to the system update check. Go to "Settings Change PC Settings" through the floating panel on the right side of the desktop, then select "Update and Restore Windows Update", click "Check Now", and you will see that there is a virus update definition in the update list.

If the above methods do not work, it may be a temporary network issue. You can try the following methods in turn.

Press the "Windows +X" key combination and select Command Prompt (Administrator); Type "net stop wuauserv" and press enter; Find the SoftwareDistribution folder under the Windows folder of the C drive and rename it arbitrarily; In the Command Prompt (Administrator) window, enter and execute the command "net start wuauserv". Then do the system update again.

Press "Windows +X" to make the key and select "Control Plane Slag Board"; Change the viewing method in the upper right corner to "Large icon", then select "Troubleshoot", select "System and security Use Windows Update to solve the problem", and follow the system prompt "Fix the problem that prevents you from updating Windows" to solve the problem step by step.

If none of the above methods work, you can try to perform a "clean boot" of the system according to the following steps:

Press the "Windows +X" key combination, select "Run", enter the "msconfig" command and press enter; Go to "System Configuration", select "Services", tick the "Hide All Microsoft Services" option in the bottom left corner, click the "Disable All" button, and click the "Apply" button; Click the "Startup" tab on the right side of the "Services" tab, and click "Open Task Manager"; Right-click on the listed startup items and select "Disable" to disable all startup items; Close the "Task Manager", click "OK" in the "System Configuration" window, and restart the computer as prompted. Then a system update will take place.

2.Solve it with the help of external tools.

In addition to taking advantage of the system's own automatic update function, it can also be solved with the help of external tools such as 360 Security Guard. From the Control Panel window, select Windows Update as Not checking for updates from. Next, through the right-click menu of the 360 Security Guard system tray icon, select "Kill Fix", enter the scan window, and select "Vulnerability Fix", so that you can also scan out the patch modules that need to be updated and update them.