Solve Windows 8.1 does not automatically update

My Windows 8.1 notebooks are often used outside, often using external networks, and have used various agents to access the Internet. In the past, whether you connected to the campus network at school or at home, you can perform normal system automatic update. However, after you enter the automatic update through the control panel and repeatedly check the automatic update, the 8024402F error code will appear and cannot be updated (Figure 1). . How to solve it?

According to the Microsoft technical code base query, the 8024402F error occurs when Windows is updated. Most of the cases are caused by the inability to connect to the Internet. Therefore, the focus of the problem is on the network environment. In order to prevent doing nothing, a safe way is to first change the network environment test to see if you can update the system. If the problem persists, try the following methods one by one.

1. Set a fixed DNS address

Right-click the Start button and execute “Control Panel> from the right-click menu, through the “All Control Panel Items” list, Select “Network and Sharing Center”. In the next window, click “Change Adapter Settings  in the left navigation bar (Figure 2).

Right-click on the currently connected network connection (local or broadband connection) and select “Properties> (Figure 3). In the Network Properties window, select “Internet Protocol Version 4 (TCP/IPv4)" and click the <;Properties" button (Figure 4). In the "Internet Protocol Version 4 (TCP/IPv4) Properties" window that opens, select "Use the following DNS server" to manually set it in the "Preferred DNS Server" and "Alternate DNS Server" in the "Preferred DNS Server" Fill in the DNS address of your network (Figure 5).

Tip:

If you don't know this address, and you are using a router and can connect to the network, enter the router settings page, you can see these two addresses on the connection status page. Otherwise, you can call your access provider.

2. Clear Agent and Agent Temporary Files

Start the Run window with the Win+R key combination and execute the “inetcpl.cpl” command to open the Internet Properties window. Under the "Connections" tab, click the <;LAN Settings" button (Figure 6). Go to the “LAN (LAN) Settings” window and click on the “Advanced” button (Figure 7). In the subsequently launched “Proxy Settings” window, delete all the records (if any). And click “OK" (Figure 8).

Next, you need to delete the proxy temporary files that have been used before. Press Win+X, select “ldquo; command prompt (administrator)” from the menu, enter the command prompt window, enter the following command and press Enter (Figure 9):

netsh winhttp reset Proxy

net stop WuAuServ

net start WuAuServ

Tip:

The first command above removes all proxy settings. The latter two commands are used to stop the system update service and restart the system update service. WuAuServ is the service name of the service that is automatically updated by the system.

3. Reset the TCP/IP stack to repair the network

Still execute the following command in the command prompt window of the administrator mode <;netsh int ip reset”, reset TCP/IP The protocol stack resets the network protocol (Figure 10).

4. Repairing system files or system services

In addition to network problems, it may be caused by corrupted, missing or corrupted system service Cryptographic Services. It can be repaired by the following methods.

First run the &Squo /SCANNOW” command through the system administrator command prompt window to detect and repair any corrupted or missing system files.

Next, in the form of the command "REGSVR32 C: Windowssystem32cryptdlg.dll" (replace the last dll file in turn), on dssenh.dll, gpkcsp.dll, initpki.dll, mssip32.dll, System files such as rsaenh.dll, sccbase.dll, slbcsp.dll, softpub.dll, wintrust.dll are re-registered, and then the system is rebooted, causing Windows to reload the repaired system service Cryptographic Services.